15797869 has 8 divisors (see below), whose sum is σ = 16161120. Its totient is φ = 15437136.

The previous prime is 15797851. The next prime is 15797891. The reversal of 15797869 is 96879751.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15797869 - 2⁹ = 15797357 is a prime.

It is a super-2 number, since 2×15797869² = 499145329882322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15797819) 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 7 ways as a sum of consecutive naturals, for example, 17962 + ... + 18820.

It is an arithmetic number, because the mean of its divisors is an integer number (2020140).

Almost surely, 2^15797869 is an apocalyptic number.

It is an amenable number.

15797869 is a deficient number, since it is larger than the sum of its proper divisors (363251).

15797869 is an equidigital number, since it uses as much as digits as its factorization.

15797869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259.

The product of its digits is 952560, while the sum is 52.

The square root of 15797869 is about 3974.6533182153. The cubic root of 15797869 is about 250.9185886457.

The spelling of 15797869 in words is "fifteen million, seven hundred ninety-seven thousand, eight hundred sixty-nine".