78733632 has 56 divisors (see below), whose sum is σ = 213965536. Its totient is φ = 25532928.

The previous prime is 78733609. The next prime is 78733651. The reversal of 78733632 is 23633787.

It is a super-2 number, since 2×78733632² = 12397969615822848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1563 + ... + 12645.

Almost surely, 2^78733632 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 78733632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106982768).

78733632 is an abundant number, since it is smaller than the sum of its proper divisors (135231904).

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

78733632 is a wasteful number, since it uses less digits than its factorization.

78733632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11135 (or 11125 counting only the distinct ones).

The product of its digits is 127008, while the sum is 39.

The square root of 78733632 is about 8873.1973944007. The cubic root of 78733632 is about 428.6012454176.

The spelling of 78733632 in words is "seventy-eight million, seven hundred thirty-three thousand, six hundred thirty-two".