73920923 has 4 divisors (see below), whose sum is σ = 75173880. Its totient is φ = 72667968.

The previous prime is 73920911. The next prime is 73920929. The reversal of 73920923 is 32902937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32902937 = 1619 ⋅20323.

It is a cyclic number.

It is not a de Polignac number, because 73920923 - 2⁴ = 73920907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73920929) 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, 626390 + ... + 626507.

It is an arithmetic number, because the mean of its divisors is an integer number (18793470).

Almost surely, 2^73920923 is an apocalyptic number.

73920923 is a deficient number, since it is larger than the sum of its proper divisors (1252957).

73920923 is a wasteful number, since it uses less digits than its factorization.

73920923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252956.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 73920923 is about 8597.7277812222. The cubic root of 73920923 is about 419.6840462014.

The spelling of 73920923 in words is "seventy-three million, nine hundred twenty thousand, nine hundred twenty-three".