74968724 has 6 divisors (see below), whose sum is σ = 131195274. Its totient is φ = 37484360.

The previous prime is 74968723. The next prime is 74968781. The reversal of 74968724 is 42786947.

It can be written as a sum of positive squares in only one way, i.e., 70896400 + 4072324 = 8420^2 + 2018^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74968723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9371087 + ... + 9371094.

It is an arithmetic number, because the mean of its divisors is an integer number (21865879).

Almost surely, 2^74968724 is an apocalyptic number.

It is an amenable number.

74968724 is a deficient number, since it is larger than the sum of its proper divisors (56226550).

74968724 is a wasteful number, since it uses less digits than its factorization.

74968724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18742185 (or 18742183 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 74968724 is about 8658.4481288508. The cubic root of 74968724 is about 421.6577040560.

The spelling of 74968724 in words is "seventy-four million, nine hundred sixty-eight thousand, seven hundred twenty-four".