863687264 has 24 divisors (see below), whose sum is σ = 1854965448. Its totient is φ = 392584960.

The previous prime is 863687257. The next prime is 863687267. The reversal of 863687264 is 462786368.

863687264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863687267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226477 + ... + 1227180.

It is an arithmetic number, because the mean of its divisors is an integer number (77290227).

Almost surely, 2^863687264 is an apocalyptic number.

It is an amenable number.

863687264 is an abundant number, since it is smaller than the sum of its proper divisors (991278184).

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

863687264 is a wasteful number, since it uses less digits than its factorization.

863687264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453678 (or 2453670 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 50.

The square root of 863687264 is about 29388.5566845328. The cubic root of 863687264 is about 952.3257012354.

The spelling of 863687264 in words is "eight hundred sixty-three million, six hundred eighty-seven thousand, two hundred sixty-four".