864612771 has 8 divisors (see below), whose sum is σ = 1257618624. Its totient is φ = 524007720.

The previous prime is 864612767. The next prime is 864612779. The reversal of 864612771 is 177216468.

864612771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 864612771 - 2² = 864612767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864612779) 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, 13100161 + ... + 13100226.

It is an arithmetic number, because the mean of its divisors is an integer number (157202328).

Almost surely, 2^864612771 is an apocalyptic number.

864612771 is a deficient number, since it is larger than the sum of its proper divisors (393005853).

864612771 is a wasteful number, since it uses less digits than its factorization.

864612771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26200401.

The product of its digits is 112896, while the sum is 42.

The square root of 864612771 is about 29404.2985122924. The cubic root of 864612771 is about 952.6657430936.

The spelling of 864612771 in words is "eight hundred sixty-four million, six hundred twelve thousand, seven hundred seventy-one".