72592997 has 4 divisors (see below), whose sum is σ = 72869280. Its totient is φ = 72316716.

The previous prime is 72592981. The next prime is 72592999. The reversal of 72592997 is 79929527.

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 a cyclic number.

It is not a de Polignac number, because 72592997 - 2⁴ = 72592981 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 (72592999) 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, 137747 + ... + 138272.

It is an arithmetic number, because the mean of its divisors is an integer number (18217320).

Almost surely, 2^72592997 is an apocalyptic number.

It is an amenable number.

72592997 is a deficient number, since it is larger than the sum of its proper divisors (276283).

72592997 is a wasteful number, since it uses less digits than its factorization.

72592997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276282.

The product of its digits is 714420, while the sum is 50.

The square root of 72592997 is about 8520.1524047402. The cubic root of 72592997 is about 417.1557576891.

The spelling of 72592997 in words is "seventy-two million, five hundred ninety-two thousand, nine hundred ninety-seven".