74991116 has 6 divisors (see below), whose sum is σ = 131234460. Its totient is φ = 37495556.

The previous prime is 74991101. The next prime is 74991127. The reversal of 74991116 is 61119947.

It is a self number, because there is not a number n which added to its sum of digits gives 74991116.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9373886 + ... + 9373893.

It is an arithmetic number, because the mean of its divisors is an integer number (21872410).

Almost surely, 2^74991116 is an apocalyptic number.

It is an amenable number.

74991116 is a deficient number, since it is larger than the sum of its proper divisors (56243344).

74991116 is a wasteful number, since it uses less digits than its factorization.

74991116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18747783 (or 18747781 counting only the distinct ones).

The product of its digits is 13608, while the sum is 38.

The square root of 74991116 is about 8659.7411046751. The cubic root of 74991116 is about 421.6996807583.

The spelling of 74991116 in words is "seventy-four million, nine hundred ninety-one thousand, one hundred sixteen".