72074593 has 4 divisors (see below), whose sum is σ = 72105520. Its totient is φ = 72043668.

The previous prime is 72074591. The next prime is 72074609. The reversal of 72074593 is 39547027.

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 an emirpimes, since its reverse is a distinct semiprime: 39547027 = 13 ⋅3042079.

It is a cyclic number.

It is not a de Polignac number, because 72074593 - 2¹ = 72074591 is a prime.

It is a super-2 number, since 2×72074593² = 10389493912231298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72074591) 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, 11655 + ... + 16732.

It is an arithmetic number, because the mean of its divisors is an integer number (18026380).

Almost surely, 2^72074593 is an apocalyptic number.

It is an amenable number.

72074593 is a deficient number, since it is larger than the sum of its proper divisors (30927).

72074593 is a wasteful number, since it uses less digits than its factorization.

72074593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30926.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 72074593 is about 8489.6756710725. The cubic root of 72074593 is about 416.1603814075.

The spelling of 72074593 in words is "seventy-two million, seventy-four thousand, five hundred ninety-three".