73725491 has 16 divisors (see below), whose sum is σ = 90374400. Its totient is φ = 58732128.

The previous prime is 73725479. The next prime is 73725493. The reversal of 73725491 is 19452737.

It is not a de Polignac number, because 73725491 - 2¹⁴ = 73709107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73725493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1820 + ... + 12278.

It is an arithmetic number, because the mean of its divisors is an integer number (5648400).

Almost surely, 2^73725491 is an apocalyptic number.

73725491 is a deficient number, since it is larger than the sum of its proper divisors (16648909).

73725491 is a wasteful number, since it uses less digits than its factorization.

73725491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10538.

The product of its digits is 52920, while the sum is 38.

The square root of 73725491 is about 8586.3549309355. The cubic root of 73725491 is about 419.3138664800.

The spelling of 73725491 in words is "seventy-three million, seven hundred twenty-five thousand, four hundred ninety-one".