78693396 has 24 divisors (see below), whose sum is σ = 191601984. Its totient is φ = 25090560.

The previous prime is 78693367. The next prime is 78693427. The reversal of 78693396 is 69339687.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142285 + ... + 142836.

It is an arithmetic number, because the mean of its divisors is an integer number (7983416).

Almost surely, 2^78693396 is an apocalyptic number.

It is an amenable number.

78693396 is an abundant number, since it is smaller than the sum of its proper divisors (112908588).

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

78693396 is a wasteful number, since it uses less digits than its factorization.

78693396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285151 (or 285149 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 51.

The square root of 78693396 is about 8870.9298272504. The cubic root of 78693396 is about 428.5282222475.

The spelling of 78693396 in words is "seventy-eight million, six hundred ninety-three thousand, three hundred ninety-six".