677401481 has 4 divisors (see below), whose sum is σ = 679189200. Its totient is φ = 675613764.

The previous prime is 677401469. The next prime is 677401493. The reversal of 677401481 is 184104776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (677401469) and next prime (677401493).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677401481 is a prime.

It is a super-2 number, since 2×677401481² = 917745532921986722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677401441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893291 + ... + 894048.

It is an arithmetic number, because the mean of its divisors is an integer number (169797300).

Almost surely, 2^677401481 is an apocalyptic number.

It is an amenable number.

677401481 is a deficient number, since it is larger than the sum of its proper divisors (1787719).

677401481 is a wasteful number, since it uses less digits than its factorization.

677401481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787718.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 677401481 is about 26026.9376031834. The cubic root of 677401481 is about 878.2443824992.

The spelling of 677401481 in words is "six hundred seventy-seven million, four hundred one thousand, four hundred eighty-one".