74797764 has 12 divisors (see below), whose sum is σ = 174528144. Its totient is φ = 24932584.

The previous prime is 74797763. The next prime is 74797777. The reversal of 74797764 is 46779747.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (74797763) 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, 3116562 + ... + 3116585.

It is an arithmetic number, because the mean of its divisors is an integer number (14544012).

Almost surely, 2^74797764 is an apocalyptic number.

It is an amenable number.

74797764 is an abundant number, since it is smaller than the sum of its proper divisors (99730380).

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

74797764 is a wasteful number, since it uses less digits than its factorization.

74797764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233154 (or 6233152 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 51.

The square root of 74797764 is about 8648.5700552172. The cubic root of 74797764 is about 421.3369415539.

The spelling of 74797764 in words is "seventy-four million, seven hundred ninety-seven thousand, seven hundred sixty-four".