674860779 has 48 divisors (see below), whose sum is σ = 1051674624. Its totient is φ = 415958400.

The previous prime is 674860759. The next prime is 674860787. The reversal of 674860779 is 977068476.

It is not a de Polignac number, because 674860779 - 2⁸ = 674860523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674860729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1111494 + ... + 1112100.

It is an arithmetic number, because the mean of its divisors is an integer number (21909888).

Almost surely, 2^674860779 is an apocalyptic number.

674860779 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

674860779 is a deficient number, since it is larger than the sum of its proper divisors (376813845).

674860779 is a wasteful number, since it uses less digits than its factorization.

674860779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The square root of 674860779 is about 25978.0826659706. The cubic root of 674860779 is about 877.1450084766.

The spelling of 674860779 in words is "six hundred seventy-four million, eight hundred sixty thousand, seven hundred seventy-nine".