73163613 has 4 divisors (see below), whose sum is σ = 97551488. Its totient is φ = 48775740.

The previous prime is 73163609. The next prime is 73163647. The reversal of 73163613 is 31636137.

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 73163613 - 2² = 73163609 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 (73163663) 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, 12193933 + ... + 12193938.

It is an arithmetic number, because the mean of its divisors is an integer number (24387872).

Almost surely, 2^73163613 is an apocalyptic number.

It is an amenable number.

73163613 is a deficient number, since it is larger than the sum of its proper divisors (24387875).

73163613 is a wasteful number, since it uses less digits than its factorization.

73163613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24387874.

The product of its digits is 6804, while the sum is 30.

The square root of 73163613 is about 8553.5731130329. The cubic root of 73163613 is about 418.2459214657.

The spelling of 73163613 in words is "seventy-three million, one hundred sixty-three thousand, six hundred thirteen".