674542057 has 4 divisors (see below), whose sum is σ = 770905216. Its totient is φ = 578178900.

The previous prime is 674542021. The next prime is 674542067. The reversal of 674542057 is 750245476.

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-674542057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674542067) 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, 48181569 + ... + 48181582.

It is an arithmetic number, because the mean of its divisors is an integer number (192726304).

Almost surely, 2^674542057 is an apocalyptic number.

It is an amenable number.

674542057 is a deficient number, since it is larger than the sum of its proper divisors (96363159).

674542057 is an equidigital number, since it uses as much as digits as its factorization.

674542057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96363158.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 674542057 is about 25971.9475011020. The cubic root of 674542057 is about 877.0069012587.

The spelling of 674542057 in words is "six hundred seventy-four million, five hundred forty-two thousand, fifty-seven".