401678113 has 4 divisors (see below), whose sum is σ = 401768640. Its totient is φ = 401587588.

The previous prime is 401678071. The next prime is 401678119. The reversal of 401678113 is 311876104.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401678113 is a prime.

It is a super-2 number, since 2×401678113² = 322690612926481538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401678119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38245 + ... + 47602.

It is an arithmetic number, because the mean of its divisors is an integer number (100442160).

Almost surely, 2^401678113 is an apocalyptic number.

It is an amenable number.

401678113 is a deficient number, since it is larger than the sum of its proper divisors (90527).

401678113 is an equidigital number, since it uses as much as digits as its factorization.

401678113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90526.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 401678113 is about 20041.9089160688. The cubic root of 401678113 is about 737.8352323707.

The spelling of 401678113 in words is "four hundred one million, six hundred seventy-eight thousand, one hundred thirteen".