74674613 has 4 divisors (see below), whose sum is σ = 80418828. Its totient is φ = 68930400.

The previous prime is 74674609. The next prime is 74674619. The reversal of 74674613 is 31647647.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13490929 + 61183684 = 3673^2 + 7822^2 .

It is a cyclic number.

It is not a de Polignac number, because 74674613 - 2² = 74674609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74674619) 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, 2872088 + ... + 2872113.

It is an arithmetic number, because the mean of its divisors is an integer number (20104707).

Almost surely, 2^74674613 is an apocalyptic number.

It is an amenable number.

74674613 is a deficient number, since it is larger than the sum of its proper divisors (5744215).

74674613 is a wasteful number, since it uses less digits than its factorization.

74674613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744214.

The product of its digits is 84672, while the sum is 38.

The square root of 74674613 is about 8641.4473903392. The cubic root of 74674613 is about 421.1055773790.

The spelling of 74674613 in words is "seventy-four million, six hundred seventy-four thousand, six hundred thirteen".