864710997 has 4 divisors (see below), whose sum is σ = 1152948000. Its totient is φ = 576473996.

The previous prime is 864710989. The next prime is 864711019. The reversal of 864710997 is 799017468.

864710997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 864710997 - 2³ = 864710989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864710927) 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, 144118497 + ... + 144118502.

It is an arithmetic number, because the mean of its divisors is an integer number (288237000).

Almost surely, 2^864710997 is an apocalyptic number.

It is an amenable number.

864710997 is a deficient number, since it is larger than the sum of its proper divisors (288237003).

864710997 is a wasteful number, since it uses less digits than its factorization.

864710997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288237002.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 864710997 is about 29405.9687308546. The cubic root of 864710997 is about 952.7018182034.

The spelling of 864710997 in words is "eight hundred sixty-four million, seven hundred ten thousand, nine hundred ninety-seven".