873639264 has 96 divisors (see below), whose sum is σ = 2391088896. Its totient is φ = 279037440.

The previous prime is 873639259. The next prime is 873639281. The reversal of 873639264 is 462936378.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236149 + ... + 239819.

It is an arithmetic number, because the mean of its divisors is an integer number (24907176).

Almost surely, 2^873639264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 873639264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195544448).

873639264 is an abundant number, since it is smaller than the sum of its proper divisors (1517449632).

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

873639264 is a wasteful number, since it uses less digits than its factorization.

873639264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788 (or 3780 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 48.

The square root of 873639264 is about 29557.3893299121. The cubic root of 873639264 is about 955.9695257059.

The spelling of 873639264 in words is "eight hundred seventy-three million, six hundred thirty-nine thousand, two hundred sixty-four".