16580797 has 6 divisors (see below), whose sum is σ = 17613818. Its totient is φ = 15605184.

The previous prime is 16580791. The next prime is 16580803. The reversal of 16580797 is 79708561.

It is an interprime number because it is at equal distance from previous prime (16580791) and next prime (16580803).

It can be written as a sum of positive squares in 3 ways, for example, as 11249316 + 5331481 = 3354^2 + 2309^2 .

It is not a de Polignac number, because 16580797 - 2¹⁵ = 16548029 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 (16580791) 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 5 ways as a sum of consecutive naturals, for example, 28398 + ... + 28975.

Almost surely, 2^16580797 is an apocalyptic number.

16580797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16580797 is a deficient number, since it is larger than the sum of its proper divisors (1033021).

16580797 is an equidigital number, since it uses as much as digits as its factorization.

16580797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57407 (or 57390 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 16580797 is about 4071.9524800764. The cubic root of 16580797 is about 254.9970370026.

The spelling of 16580797 in words is "sixteen million, five hundred eighty thousand, seven hundred ninety-seven".