74937913 has 4 divisors (see below), whose sum is σ = 76963300. Its totient is φ = 72912528.

The previous prime is 74937901. The next prime is 74937917. The reversal of 74937913 is 31973947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31973947 = 4153 ⋅7699.

It can be written as a sum of positive squares in 2 ways, for example, as 68343289 + 6594624 = 8267^2 + 2568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74937913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74937913.

It is not an unprimeable number, because it can be changed into a prime (74937917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012638 + ... + 1012711.

It is an arithmetic number, because the mean of its divisors is an integer number (19240825).

Almost surely, 2^74937913 is an apocalyptic number.

It is an amenable number.

74937913 is a deficient number, since it is larger than the sum of its proper divisors (2025387).

74937913 is a wasteful number, since it uses less digits than its factorization.

74937913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025386.

The product of its digits is 142884, while the sum is 43.

The square root of 74937913 is about 8656.6687010651. The cubic root of 74937913 is about 421.5999311829.

The spelling of 74937913 in words is "seventy-four million, nine hundred thirty-seven thousand, nine hundred thirteen".