74673213 has 4 divisors (see below), whose sum is σ = 99564288. Its totient is φ = 49782140.

The previous prime is 74673199. The next prime is 74673217. The reversal of 74673213 is 31237647.

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 74673213 - 2¹⁸ = 74411069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74673217) 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, 12445533 + ... + 12445538.

It is an arithmetic number, because the mean of its divisors is an integer number (24891072).

Almost surely, 2^74673213 is an apocalyptic number.

It is an amenable number.

74673213 is a deficient number, since it is larger than the sum of its proper divisors (24891075).

74673213 is a wasteful number, since it uses less digits than its factorization.

74673213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24891074.

The product of its digits is 21168, while the sum is 33.

The square root of 74673213 is about 8641.3663850111. The cubic root of 74673213 is about 421.1029457328.

The spelling of 74673213 in words is "seventy-four million, six hundred seventy-three thousand, two hundred thirteen".