73491 has 16 divisors (see below), whose sum is σ = 114048. Its totient is φ = 41600.

The previous prime is 73483. The next prime is 73517. The reversal of 73491 is 19437.

It is a cyclic number.

It is not a de Polignac number, because 73491 - 2³ = 73483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73421) 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, 496 + ... + 626.

It is an arithmetic number, because the mean of its divisors is an integer number (7128).

2⁷³⁴⁹¹ is an apocalyptic number.

73491 is a deficient number, since it is larger than the sum of its proper divisors (40557).

73491 is a wasteful number, since it uses less digits than its factorization.

73491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162.

The product of its digits is 756, while the sum is 24.

The square root of 73491 is about 271.0922352263. The cubic root of 73491 is about 41.8868838329.

Adding to 73491 its product of digits (756), we get a palindrome (74247).

The spelling of 73491 in words is "seventy-three thousand, four hundred ninety-one".