15796849 has 4 divisors (see below), whose sum is σ = 16182180. Its totient is φ = 15411520.

The previous prime is 15796811. The next prime is 15796903. The reversal of 15796849 is 94869751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94869751 = 257 ⋅369143.

It can be written as a sum of positive squares in 2 ways, for example, as 6451600 + 9345249 = 2540^2 + 3057^2 .

It is a cyclic number.

It is not a de Polignac number, because 15796849 - 2⁷ = 15796721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15796549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192604 + ... + 192685.

It is an arithmetic number, because the mean of its divisors is an integer number (4045545).

Almost surely, 2^15796849 is an apocalyptic number.

It is an amenable number.

15796849 is a deficient number, since it is larger than the sum of its proper divisors (385331).

15796849 is an equidigital number, since it uses as much as digits as its factorization.

15796849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385330.

The product of its digits is 544320, while the sum is 49.

The square root of 15796849 is about 3974.5250030664. The cubic root of 15796849 is about 250.9131882872.

The spelling of 15796849 in words is "fifteen million, seven hundred ninety-six thousand, eight hundred forty-nine".