74675213 has 4 divisors (see below), whose sum is σ = 76693500. Its totient is φ = 72656928.

The previous prime is 74675201. The next prime is 74675239. The reversal of 74675213 is 31257647.

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 71859529 + 2815684 = 8477^2 + 1678^2 .

It is a cyclic number.

It is not a de Polignac number, because 74675213 - 2²² = 70480909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74675243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009088 + ... + 1009161.

It is an arithmetic number, because the mean of its divisors is an integer number (19173375).

Almost surely, 2^74675213 is an apocalyptic number.

It is an amenable number.

74675213 is a deficient number, since it is larger than the sum of its proper divisors (2018287).

74675213 is a wasteful number, since it uses less digits than its factorization.

74675213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018286.

The product of its digits is 35280, while the sum is 35.

The square root of 74675213 is about 8641.4821066759. The cubic root of 74675213 is about 421.1067052173.

The spelling of 74675213 in words is "seventy-four million, six hundred seventy-five thousand, two hundred thirteen".