78732630 has 24 divisors (see below), whose sum is σ = 204705072. Its totient is φ = 20995344.

The previous prime is 78732623. The next prime is 78732659. The reversal of 78732630 is 3623787.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437314 + ... + 437493.

It is an arithmetic number, because the mean of its divisors is an integer number (8529378).

Almost surely, 2^78732630 is an apocalyptic number.

78732630 is an abundant number, since it is smaller than the sum of its proper divisors (125972442).

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

78732630 is a wasteful number, since it uses less digits than its factorization.

78732630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874820 (or 874817 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 78732630 is about 8873.1409320488. The cubic root of 78732630 is about 428.5994272184.

The spelling of 78732630 in words is "seventy-eight million, seven hundred thirty-two thousand, six hundred thirty".