16464791 has 4 divisors (see below), whose sum is σ = 18816912. Its totient is φ = 14112672.

The previous prime is 16464761. The next prime is 16464841. The reversal of 16464791 is 19746461.

It is a happy number.

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

It is not a de Polignac number, because 16464791 - 2⁶ = 16464727 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 (16464731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176050 + ... + 1176063.

It is an arithmetic number, because the mean of its divisors is an integer number (4704228).

Almost surely, 2^16464791 is an apocalyptic number.

16464791 is a deficient number, since it is larger than the sum of its proper divisors (2352121).

16464791 is an equidigital number, since it uses as much as digits as its factorization.

16464791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352120.

The product of its digits is 36288, while the sum is 38.

The square root of 16464791 is about 4057.6829595226. The cubic root of 16464791 is about 254.4009570310.

The spelling of 16464791 in words is "sixteen million, four hundred sixty-four thousand, seven hundred ninety-one".