78073964 has 12 divisors (see below), whose sum is σ = 143820600. Its totient is φ = 36982368.

The previous prime is 78073951. The next prime is 78073967. The reversal of 78073964 is 46937087.

It is not an unprimeable number, because it can be changed into a prime (78073967) 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, 513569 + ... + 513720.

It is an arithmetic number, because the mean of its divisors is an integer number (11985050).

Almost surely, 2^78073964 is an apocalyptic number.

It is an amenable number.

78073964 is a deficient number, since it is larger than the sum of its proper divisors (65746636).

78073964 is a wasteful number, since it uses less digits than its factorization.

78073964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027312 (or 1027310 counting only the distinct ones).

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

The square root of 78073964 is about 8835.9472610468. The cubic root of 78073964 is about 427.4008780369.

The spelling of 78073964 in words is "seventy-eight million, seventy-three thousand, nine hundred sixty-four".