78732836 has 48 divisors (see below), whose sum is σ = 171959424. Its totient is φ = 30710016.

The previous prime is 78732821. The next prime is 78732851. The reversal of 78732836 is 63823787.

It is an interprime number because it is at equal distance from previous prime (78732821) and next prime (78732851).

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, 25091 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (3582488).

Almost surely, 2^78732836 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 78732836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85979712).

78732836 is an abundant number, since it is smaller than the sum of its proper divisors (93226588).

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

78732836 is a wasteful number, since it uses less digits than its factorization.

78732836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060 (or 3058 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 78732836 is about 8873.1525401066. The cubic root of 78732836 is about 428.5998010211.

The spelling of 78732836 in words is "seventy-eight million, seven hundred thirty-two thousand, eight hundred thirty-six".