16564793 has 12 divisors (see below), whose sum is σ = 19348992. Its totient is φ = 14139720.

The previous prime is 16564747. The next prime is 16564831. The reversal of 16564793 is 39746561.

It is not a de Polignac number, because 16564793 - 2¹⁴ = 16548409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16564793.

It is not an unprimeable number, because it can be changed into a prime (16564703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14696 + ... + 15782.

It is an arithmetic number, because the mean of its divisors is an integer number (1612416).

Almost surely, 2^16564793 is an apocalyptic number.

It is an amenable number.

16564793 is a deficient number, since it is larger than the sum of its proper divisors (2784199).

16564793 is a wasteful number, since it uses less digits than its factorization.

16564793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1405 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 16564793 is about 4069.9868550156. The cubic root of 16564793 is about 254.9149684449.

The spelling of 16564793 in words is "sixteen million, five hundred sixty-four thousand, seven hundred ninety-three".