864880076 has 48 divisors (see below), whose sum is σ = 1663169760. Its totient is φ = 392071680.

The previous prime is 864880073. The next prime is 864880091. The reversal of 864880076 is 670088468.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 864880076.

It is not an unprimeable number, because it can be changed into a prime (864880073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162530 + ... + 167766.

It is an arithmetic number, because the mean of its divisors is an integer number (34649370).

Almost surely, 2^864880076 is an apocalyptic number.

It is an amenable number.

864880076 is a deficient number, since it is larger than the sum of its proper divisors (798289684).

864880076 is a wasteful number, since it uses less digits than its factorization.

864880076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5354 (or 5352 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 864880076 is about 29408.8434998726. The cubic root of 864880076 is about 952.7639088416.

The spelling of 864880076 in words is "eight hundred sixty-four million, eight hundred eighty thousand, seventy-six".