715329991 has 8 divisors (see below), whose sum is σ = 758363264. Its totient is φ = 673544160.

The previous prime is 715329959. The next prime is 715329997. The reversal of 715329991 is 199923517.

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 715329991 - 2⁵ = 715329959 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 (715329997) 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, 310680 + ... + 312973.

It is an arithmetic number, because the mean of its divisors is an integer number (94795408).

Almost surely, 2^715329991 is an apocalyptic number.

715329991 is a deficient number, since it is larger than the sum of its proper divisors (43033273).

715329991 is a wasteful number, since it uses less digits than its factorization.

715329991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623721.

The product of its digits is 153090, while the sum is 46.

The square root of 715329991 is about 26745.6536842905. The cubic root of 715329991 is about 894.3389482110.

The spelling of 715329991 in words is "seven hundred fifteen million, three hundred twenty-nine thousand, nine hundred ninety-one".