674257087 has 8 divisors (see below), whose sum is σ = 770736672. Its totient is φ = 577816800.

The previous prime is 674257081. The next prime is 674257091. The reversal of 674257087 is 780752476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 674257087 - 2³ = 674257079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674257081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61137 + ... + 71317.

It is an arithmetic number, because the mean of its divisors is an integer number (96342084).

Almost surely, 2^674257087 is an apocalyptic number.

674257087 is a deficient number, since it is larger than the sum of its proper divisors (96479585).

674257087 is a wasteful number, since it uses less digits than its factorization.

674257087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19649.

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 674257087 is about 25966.4608100526. The cubic root of 674257087 is about 876.8833824672.

The spelling of 674257087 in words is "six hundred seventy-four million, two hundred fifty-seven thousand, eighty-seven".