864763284 has 72 divisors (see below), whose sum is σ = 2534762944. Its totient is φ = 224611200.

The previous prime is 864763271. The next prime is 864763351. The reversal of 864763284 is 482367468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32377 + ... + 52704.

Almost surely, 2^864763284 is an apocalyptic number.

864763284 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

864763284 is an abundant number, since it is smaller than the sum of its proper divisors (1669999660).

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

864763284 is a wasteful number, since it uses less digits than its factorization.

864763284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85117 (or 85104 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 48.

The square root of 864763284 is about 29406.8577716151. The cubic root of 864763284 is about 952.7210203476.

The spelling of 864763284 in words is "eight hundred sixty-four million, seven hundred sixty-three thousand, two hundred eighty-four".