715974891 has 8 divisors (see below), whose sum is σ = 1004877120. Its totient is φ = 452194632.

The previous prime is 715974887. The next prime is 715974899. The reversal of 715974891 is 198479517.

It is a happy number.

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

It is not a de Polignac number, because 715974891 - 2² = 715974887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (715974899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6280425 + ... + 6280538.

It is an arithmetic number, because the mean of its divisors is an integer number (125609640).

Almost surely, 2^715974891 is an apocalyptic number.

715974891 is a deficient number, since it is larger than the sum of its proper divisors (288902229).

715974891 is a wasteful number, since it uses less digits than its factorization.

715974891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12560985.

The product of its digits is 635040, while the sum is 51.

The square root of 715974891 is about 26757.7071327122. The cubic root of 715974891 is about 894.6076288468.

The spelling of 715974891 in words is "seven hundred fifteen million, nine hundred seventy-four thousand, eight hundred ninety-one".