78333970 has 32 divisors (see below), whose sum is σ = 165654720. Its totient is φ = 26293440.

The previous prime is 78333967. The next prime is 78333971. The reversal of 78333970 is 7933387.

It is a super-2 number, since 2×78333970² = 12272421711921800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78333971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25960 + ... + 28819.

It is an arithmetic number, because the mean of its divisors is an integer number (5176710).

Almost surely, 2^78333970 is an apocalyptic number.

78333970 is an abundant number, since it is smaller than the sum of its proper divisors (87320750).

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

78333970 is a wasteful number, since it uses less digits than its factorization.

78333970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54810.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 78333970 is about 8850.6479988756. The cubic root of 78333970 is about 427.8748032511.

The spelling of 78333970 in words is "seventy-eight million, three hundred thirty-three thousand, nine hundred seventy".