16813797 has 48 divisors (see below), whose sum is σ = 30387840. Its totient is φ = 8046720.

The previous prime is 16813787. The next prime is 16813801. The reversal of 16813797 is 79731861.

It is not a de Polignac number, because 16813797 - 2⁷ = 16813669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16813757) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32779 + ... + 33287.

It is an arithmetic number, because the mean of its divisors is an integer number (633080).

Almost surely, 2^16813797 is an apocalyptic number.

It is an amenable number.

16813797 is a deficient number, since it is larger than the sum of its proper divisors (13574043).

16813797 is a wasteful number, since it uses less digits than its factorization.

16813797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 543 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 16813797 is about 4100.4630226354. The cubic root of 16813797 is about 256.1859255225.

The spelling of 16813797 in words is "sixteen million, eight hundred thirteen thousand, seven hundred ninety-seven".