74323513 has 4 divisors (see below), whose sum is σ = 81080208. Its totient is φ = 67566820.

The previous prime is 74323499. The next prime is 74323519. The reversal of 74323513 is 31532347.

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 a cyclic number.

It is not a de Polignac number, because 74323513 - 2¹³ = 74315321 is a prime.

It is a super-2 number, since 2×74323513² = 11047969169322338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74323519) 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, 3378331 + ... + 3378352.

It is an arithmetic number, because the mean of its divisors is an integer number (20270052).

Almost surely, 2^74323513 is an apocalyptic number.

It is an amenable number.

74323513 is a deficient number, since it is larger than the sum of its proper divisors (6756695).

74323513 is a wasteful number, since it uses less digits than its factorization.

74323513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6756694.

The product of its digits is 7560, while the sum is 28.

The square root of 74323513 is about 8621.1085714077. The cubic root of 74323513 is about 420.4445651701. Note that the first 3 decimals are identical.

The spelling of 74323513 in words is "seventy-four million, three hundred twenty-three thousand, five hundred thirteen".