864951612 has 24 divisors (see below), whose sum is σ = 2306537856. Its totient is φ = 247129008.

The previous prime is 864951599. The next prime is 864951629. The reversal of 864951612 is 216159468.

It is a super-2 number, since 2×864951612² = 1496282582202797088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5148438 + ... + 5148605.

It is an arithmetic number, because the mean of its divisors is an integer number (96105744).

Almost surely, 2^864951612 is an apocalyptic number.

It is an amenable number.

864951612 is an abundant number, since it is smaller than the sum of its proper divisors (1441586244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864951612 is a wasteful number, since it uses less digits than its factorization.

864951612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10297057 (or 10297055 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 864951612 is about 29410.0597075218. The cubic root of 864951612 is about 952.7901764679.

The spelling of 864951612 in words is "eight hundred sixty-four million, nine hundred fifty-one thousand, six hundred twelve".