74993972 has 12 divisors (see below), whose sum is σ = 131729220. Its totient is φ = 37357056.

The previous prime is 74993959. The next prime is 74993977. The reversal of 74993972 is 27939947.

It can be written as a sum of positive squares in 2 ways, for example, as 46840336 + 28153636 = 6844^2 + 5306^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74993972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74993977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33773 + ... + 35924.

It is an arithmetic number, because the mean of its divisors is an integer number (10977435).

Almost surely, 2^74993972 is an apocalyptic number.

It is an amenable number.

74993972 is a deficient number, since it is larger than the sum of its proper divisors (56735248).

74993972 is a wasteful number, since it uses less digits than its factorization.

74993972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69970 (or 69968 counting only the distinct ones).

The product of its digits is 857304, while the sum is 50.

The square root of 74993972 is about 8659.9060041088. The cubic root of 74993972 is about 421.7050340990.

The spelling of 74993972 in words is "seventy-four million, nine hundred ninety-three thousand, nine hundred seventy-two".