74513739 has 16 divisors (see below), whose sum is σ = 102896640. Its totient is φ = 47914080.

The previous prime is 74513729. The next prime is 74513741. The reversal of 74513739 is 93731547.

It is a happy number.

It is not a de Polignac number, because 74513739 - 2⁴ = 74513723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74513697 and 74513706.

It is not an unprimeable number, because it can be changed into a prime (74513729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31117 + ... + 33425.

It is an arithmetic number, because the mean of its divisors is an integer number (6431040).

Almost surely, 2^74513739 is an apocalyptic number.

74513739 is a deficient number, since it is larger than the sum of its proper divisors (28382901).

74513739 is a wasteful number, since it uses less digits than its factorization.

74513739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690.

The product of its digits is 79380, while the sum is 39.

The square root of 74513739 is about 8632.1340930271. The cubic root of 74513739 is about 420.8029593824.

The spelling of 74513739 in words is "seventy-four million, five hundred thirteen thousand, seven hundred thirty-nine".