73778764 has 12 divisors (see below), whose sum is σ = 130882024. Its totient is φ = 36383904.

The previous prime is 73778753. The next prime is 73778801. The reversal of 73778764 is 46787737.

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, 126042 + ... + 126625.

Almost surely, 2^73778764 is an apocalyptic number.

It is an amenable number.

73778764 is a deficient number, since it is larger than the sum of its proper divisors (57103260).

73778764 is a wasteful number, since it uses less digits than its factorization.

73778764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252744 (or 252742 counting only the distinct ones).

The product of its digits is 1382976, while the sum is 49.

The square root of 73778764 is about 8589.4565602254. The cubic root of 73778764 is about 419.4148389255.

The spelling of 73778764 in words is "seventy-three million, seven hundred seventy-eight thousand, seven hundred sixty-four".