74712913 has 4 divisors (see below), whose sum is σ = 81505008. Its totient is φ = 67920820.

The previous prime is 74712893. The next prime is 74712923. The reversal of 74712913 is 31921747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 74712913 - 2⁹ = 74712401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74712923) 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, 3396031 + ... + 3396052.

It is an arithmetic number, because the mean of its divisors is an integer number (20376252).

Almost surely, 2^74712913 is an apocalyptic number.

It is an amenable number.

74712913 is a deficient number, since it is larger than the sum of its proper divisors (6792095).

74712913 is a wasteful number, since it uses less digits than its factorization.

74712913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6792094.

The product of its digits is 10584, while the sum is 34.

The square root of 74712913 is about 8643.6631702074. The cubic root of 74712913 is about 421.1775589462.

It can be divided in two parts, 74712 and 913, that added together give a square (75625 = 275²).

The spelling of 74712913 in words is "seventy-four million, seven hundred twelve thousand, nine hundred thirteen".