78232836 has 96 divisors (see below), whose sum is σ = 209018880. Its totient is φ = 22556800.

The previous prime is 78232829. The next prime is 78232853. The reversal of 78232836 is 63823287.

It is a happy number.

It is a super-2 number, since 2×78232836² = 12240753257205792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 78232794 and 78232803.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409501 + ... + 409691.

It is an arithmetic number, because the mean of its divisors is an integer number (2177280).

Almost surely, 2^78232836 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 78232836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104509440).

78232836 is an abundant number, since it is smaller than the sum of its proper divisors (130786044).

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

78232836 is a wasteful number, since it uses less digits than its factorization.

78232836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 343 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 78232836 is about 8844.9327866299. The cubic root of 78232836 is about 427.6905863386.

The spelling of 78232836 in words is "seventy-eight million, two hundred thirty-two thousand, eight hundred thirty-six".