16472591 has 4 divisors (see below), whose sum is σ = 16541184. Its totient is φ = 16404000.

The previous prime is 16472579. The next prime is 16472593. The reversal of 16472591 is 19527461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16472591 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 (16472593) 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, 33935 + ... + 34416.

It is an arithmetic number, because the mean of its divisors is an integer number (4135296).

Almost surely, 2^16472591 is an apocalyptic number.

16472591 is a deficient number, since it is larger than the sum of its proper divisors (68593).

16472591 is an equidigital number, since it uses as much as digits as its factorization.

16472591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68592.

The product of its digits is 15120, while the sum is 35.

The square root of 16472591 is about 4058.6439853725. The cubic root of 16472591 is about 254.4411238370.

The spelling of 16472591 in words is "sixteen million, four hundred seventy-two thousand, five hundred ninety-one".