73774664 has 8 divisors (see below), whose sum is σ = 138327510. Its totient is φ = 36887328.

The previous prime is 73774661. The next prime is 73774691. The reversal of 73774664 is 46647737.

It can be written as a sum of positive squares in only one way, i.e., 67732900 + 6041764 = 8230^2 + 2458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (73774661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4610909 + ... + 4610924.

Almost surely, 2^73774664 is an apocalyptic number.

It is an amenable number.

73774664 is a deficient number, since it is larger than the sum of its proper divisors (64552846).

73774664 is a wasteful number, since it uses less digits than its factorization.

73774664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221839 (or 9221835 counting only the distinct ones).

The product of its digits is 592704, while the sum is 44.

The square root of 73774664 is about 8589.2178922181. The cubic root of 73774664 is about 419.4070696045.

The spelling of 73774664 in words is "seventy-three million, seven hundred seventy-four thousand, six hundred sixty-four".