78230784 has 36 divisors (see below), whose sum is σ = 208210016. Its totient is φ = 26076672.

The previous prime is 78230743. The next prime is 78230807. The reversal of 78230784 is 48703287.

It is a super-2 number, since 2×78230784² = 12240111130509312, 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 3 ways as a sum of consecutive naturals, for example, 50164 + ... + 51699.

Almost surely, 2^78230784 is an apocalyptic number.

It is an amenable number.

78230784 is an abundant number, since it is smaller than the sum of its proper divisors (129979232).

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

78230784 is a wasteful number, since it uses less digits than its factorization.

78230784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101882 (or 101868 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 78230784 is about 8844.8167872489. The cubic root of 78230784 is about 427.6868469507.

The spelling of 78230784 in words is "seventy-eight million, two hundred thirty thousand, seven hundred eighty-four".