787864504 has 64 divisors (see below), whose sum is σ = 1775831040. Its totient is φ = 320561280.

The previous prime is 787864499. The next prime is 787864513. The reversal of 787864504 is 405468787.

It is a happy number.

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, 87727 + ... + 96289.

It is an arithmetic number, because the mean of its divisors is an integer number (27747360).

Almost surely, 2^787864504 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 787864504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887915520).

787864504 is an abundant number, since it is smaller than the sum of its proper divisors (987966536).

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

787864504 is a wasteful number, since it uses less digits than its factorization.

787864504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8660 (or 8656 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The square root of 787864504 is about 28068.9241689096. The cubic root of 787864504 is about 923.5998310913.

The spelling of 787864504 in words is "seven hundred eighty-seven million, eight hundred sixty-four thousand, five hundred four".