78093764 has 12 divisors (see below), whose sum is σ = 156187584. Its totient is φ = 33468744.

The previous prime is 78093761. The next prime is 78093797. The reversal of 78093764 is 46739087.

78093764 is an admirable number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (78093761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394504 + ... + 1394559.

It is an arithmetic number, because the mean of its divisors is an integer number (13015632).

Almost surely, 2^78093764 is an apocalyptic number.

It is an amenable number.

78093764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78093764 is a wasteful number, since it uses less digits than its factorization.

78093764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789074 (or 2789072 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 78093764 is about 8837.0676131848. The cubic root of 78093764 is about 427.4370054118.

The spelling of 78093764 in words is "seventy-eight million, ninety-three thousand, seven hundred sixty-four".