73369813 has 4 divisors (see below), whose sum is σ = 80039808. Its totient is φ = 66699820.

The previous prime is 73369789. The next prime is 73369823. The reversal of 73369813 is 31896337.

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 not a de Polignac number, because 73369813 - 2⁵ = 73369781 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 (73369823) 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, 3334981 + ... + 3335002.

It is an arithmetic number, because the mean of its divisors is an integer number (20009952).

Almost surely, 2^73369813 is an apocalyptic number.

It is an amenable number.

73369813 is a deficient number, since it is larger than the sum of its proper divisors (6669995).

73369813 is a wasteful number, since it uses less digits than its factorization.

73369813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6669994.

The product of its digits is 81648, while the sum is 40.

The square root of 73369813 is about 8565.6180746050. The cubic root of 73369813 is about 418.6384727719.

The spelling of 73369813 in words is "seventy-three million, three hundred sixty-nine thousand, eight hundred thirteen".