864864270 has 64 divisors (see below), whose sum is σ = 2368664640. Its totient is φ = 224394624.

The previous prime is 864864223. The next prime is 864864311. The reversal of 864864270 is 72468468.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33297 + ... + 53276.

It is an arithmetic number, because the mean of its divisors is an integer number (37010385).

Almost surely, 2^864864270 is an apocalyptic number.

864864270 is an abundant number, since it is smaller than the sum of its proper divisors (1503800370).

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

864864270 is a wasteful number, since it uses less digits than its factorization.

864864270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86626 (or 86620 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 864864270 is about 29408.5747699544. The cubic root of 864864270 is about 952.7581047698.

The spelling of 864864270 in words is "eight hundred sixty-four million, eight hundred sixty-four thousand, two hundred seventy".