677590831 has 4 divisors (see below), whose sum is σ = 678355632. Its totient is φ = 676826032.

The previous prime is 677590817. The next prime is 677590883. The reversal of 677590831 is 138095776.

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

It is a cyclic number.

It is not a de Polignac number, because 677590831 - 2⁷ = 677590703 is a prime.

It is a super-3 number, since 3×677590831³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677593831) 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, 381070 + ... + 382843.

It is an arithmetic number, because the mean of its divisors is an integer number (169588908).

Almost surely, 2^677590831 is an apocalyptic number.

677590831 is a deficient number, since it is larger than the sum of its proper divisors (764801).

677590831 is an equidigital number, since it uses as much as digits as its factorization.

677590831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764800.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 677590831 is about 26030.5749264207. The cubic root of 677590831 is about 878.3262050158.

The spelling of 677590831 in words is "six hundred seventy-seven million, five hundred ninety thousand, eight hundred thirty-one".