73881213 has 16 divisors (see below), whose sum is σ = 112704000. Its totient is φ = 42171696.

The previous prime is 73881191. The next prime is 73881233. The reversal of 73881213 is 31218837.

It is not a de Polignac number, because 73881213 - 2⁸ = 73880957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73881233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30306 + ... + 32652.

It is an arithmetic number, because the mean of its divisors is an integer number (7044000).

Almost surely, 2^73881213 is an apocalyptic number.

It is an amenable number.

73881213 is a deficient number, since it is larger than the sum of its proper divisors (38822787).

73881213 is a wasteful number, since it uses less digits than its factorization.

73881213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856.

The product of its digits is 8064, while the sum is 33.

The square root of 73881213 is about 8595.4181399162. The cubic root of 73881213 is about 419.6088819225.

The spelling of 73881213 in words is "seventy-three million, eight hundred eighty-one thousand, two hundred thirteen".