74968729 has 8 divisors (see below), whose sum is σ = 82382688. Its totient is φ = 67654560.

The previous prime is 74968723. The next prime is 74968781. The reversal of 74968729 is 92786947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74968729 - 2⁹ = 74968217 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23367 + ... + 26380.

It is an arithmetic number, because the mean of its divisors is an integer number (10297836).

Almost surely, 2^74968729 is an apocalyptic number.

It is an amenable number.

74968729 is a deficient number, since it is larger than the sum of its proper divisors (7413959).

74968729 is a wasteful number, since it uses less digits than its factorization.

74968729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49895.

The product of its digits is 1524096, while the sum is 52.

The square root of 74968729 is about 8658.4484175861. The cubic root of 74968729 is about 421.6577134300.

The spelling of 74968729 in words is "seventy-four million, nine hundred sixty-eight thousand, seven hundred twenty-nine".