15799499 has 2 divisors, whose sum is σ = 15799500. Its totient is φ = 15799498.

The previous prime is 15799493. The next prime is 15799501. The reversal of 15799499 is 99499751.

15799499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15799499 is a prime.

Together with 15799501, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15799499.

It is not a weakly prime, because it can be changed into another prime (15799493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7899749 + 7899750.

It is an arithmetic number, because the mean of its divisors is an integer number (7899750).

Almost surely, 2^15799499 is an apocalyptic number.

15799499 is a deficient number, since it is larger than the sum of its proper divisors (1).

15799499 is an equidigital number, since it uses as much as digits as its factorization.

15799499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 53.

The square root of 15799499 is about 3974.8583622564. The cubic root of 15799499 is about 250.9272181478.

The spelling of 15799499 in words is "fifteen million, seven hundred ninety-nine thousand, four hundred ninety-nine".