72922937 has 4 divisors (see below), whose sum is σ = 72940176. Its totient is φ = 72905700.

The previous prime is 72922921. The next prime is 72922973. The reversal of 72922937 is 73922927.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 72922937 - 2⁴ = 72922921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72922894 and 72922903.

It is not an unprimeable number, because it can be changed into a prime (72922237) 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, 2558 + ... + 12344.

It is an arithmetic number, because the mean of its divisors is an integer number (18235044).

Almost surely, 2^72922937 is an apocalyptic number.

It is an amenable number.

72922937 is a deficient number, since it is larger than the sum of its proper divisors (17239).

72922937 is an equidigital number, since it uses as much as digits as its factorization.

72922937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17238.

The product of its digits is 95256, while the sum is 41.

The square root of 72922937 is about 8539.4927835323. The cubic root of 72922937 is about 417.7868028273.

The spelling of 72922937 in words is "seventy-two million, nine hundred twenty-two thousand, nine hundred thirty-seven".