401677853 has 4 divisors (see below), whose sum is σ = 425305980. Its totient is φ = 378049728.

The previous prime is 401677817. The next prime is 401677889. The reversal of 401677853 is 358776104.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (401677817) and next prime (401677889).

It can be written as a sum of positive squares in 2 ways, for example, as 352425529 + 49252324 = 18773^2 + 7018^2 .

It is a cyclic number.

It is not a de Polignac number, because 401677853 - 2¹² = 401673757 is a prime.

It is a super-2 number, since 2×401677853² = 322690195181379218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401677853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401677453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11814038 + ... + 11814071.

It is an arithmetic number, because the mean of its divisors is an integer number (106326495).

Almost surely, 2^401677853 is an apocalyptic number.

It is an amenable number.

401677853 is a deficient number, since it is larger than the sum of its proper divisors (23628127).

401677853 is a wasteful number, since it uses less digits than its factorization.

401677853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23628126.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 401677853 is about 20041.9024296597. The cubic root of 401677853 is about 737.8350731743.

The spelling of 401677853 in words is "four hundred one million, six hundred seventy-seven thousand, eight hundred fifty-three".