677225631 has 4 divisors (see below), whose sum is σ = 902967512. Its totient is φ = 451483752.

The previous prime is 677225629. The next prime is 677225641. The reversal of 677225631 is 136522776.

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

It is not a de Polignac number, because 677225631 - 2¹ = 677225629 is a prime.

It is a super-2 number, since 2×677225631² = 917269110566696322, 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 677225631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677225621) 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, 112870936 + ... + 112870941.

It is an arithmetic number, because the mean of its divisors is an integer number (225741878).

Almost surely, 2^677225631 is an apocalyptic number.

677225631 is a deficient number, since it is larger than the sum of its proper divisors (225741881).

677225631 is a wasteful number, since it uses less digits than its factorization.

677225631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225741880.

The product of its digits is 105840, while the sum is 39.

The square root of 677225631 is about 26023.5591531981. The cubic root of 677225631 is about 878.1683799882.

The spelling of 677225631 in words is "six hundred seventy-seven million, two hundred twenty-five thousand, six hundred thirty-one".