78093788 has 12 divisors (see below), whose sum is σ = 137380992. Its totient is φ = 38842080.

The previous prime is 78093761. The next prime is 78093797. The reversal of 78093788 is 88739087.

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, 50345 + ... + 51872.

It is an arithmetic number, because the mean of its divisors is an integer number (11448416).

Almost surely, 2^78093788 is an apocalyptic number.

It is an amenable number.

78093788 is a deficient number, since it is larger than the sum of its proper divisors (59287204).

78093788 is a wasteful number, since it uses less digits than its factorization.

78093788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102412 (or 102410 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 78093788 is about 8837.0689711012. The cubic root of 78093788 is about 427.4370491989.

The spelling of 78093788 in words is "seventy-eight million, ninety-three thousand, seven hundred eighty-eight".