73920993 has 8 divisors (see below), whose sum is σ = 99214656. Its totient is φ = 48954000.

The previous prime is 73920983. The next prime is 73921007. The reversal of 73920993 is 39902937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73920993 - 2⁶ = 73920929 is a prime.

It is a super-2 number, since 2×73920993² = 10928626412212098, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73920983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81138 + ... + 82043.

It is an arithmetic number, because the mean of its divisors is an integer number (12401832).

Almost surely, 2^73920993 is an apocalyptic number.

It is an amenable number.

73920993 is a deficient number, since it is larger than the sum of its proper divisors (25293663).

73920993 is a wasteful number, since it uses less digits than its factorization.

73920993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163335.

The product of its (nonzero) digits is 91854, while the sum is 42.

The square root of 73920993 is about 8597.7318520642. The cubic root of 73920993 is about 419.6841786757.

The spelling of 73920993 in words is "seventy-three million, nine hundred twenty thousand, nine hundred ninety-three".