78772332 has 36 divisors (see below), whose sum is σ = 192156440. Its totient is φ = 25113792.

The previous prime is 78772307. The next prime is 78772367. The reversal of 78772332 is 23327787.

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, 144 + ... + 12552.

Almost surely, 2^78772332 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 78772332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96078220).

78772332 is an abundant number, since it is smaller than the sum of its proper divisors (113384108).

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

78772332 is a wasteful number, since it uses less digits than its factorization.

78772332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12462 (or 12437 counting only the distinct ones).

The product of its digits is 98784, while the sum is 39.

The square root of 78772332 is about 8875.3778511115. The cubic root of 78772332 is about 428.6714574768.

The spelling of 78772332 in words is "seventy-eight million, seven hundred seventy-two thousand, three hundred thirty-two".