715617993 has 8 divisors (see below), whose sum is σ = 961122528. Its totient is φ = 473596064.

The previous prime is 715617989. The next prime is 715618049. The reversal of 715617993 is 399716517.

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 715617993 - 2² = 715617989 is a prime.

It is a super-2 number, since 2×715617993² = 1024218223810696098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (715617913) 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, 870171 + ... + 870992.

It is an arithmetic number, because the mean of its divisors is an integer number (120140316).

Almost surely, 2^715617993 is an apocalyptic number.

It is an amenable number.

715617993 is a deficient number, since it is larger than the sum of its proper divisors (245504535).

715617993 is a wasteful number, since it uses less digits than its factorization.

715617993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741303.

The product of its digits is 357210, while the sum is 48.

The square root of 715617993 is about 26751.0372322271. The cubic root of 715617993 is about 894.4589566218.

The spelling of 715617993 in words is "seven hundred fifteen million, six hundred seventeen thousand, nine hundred ninety-three".