15794897 has 2 divisors, whose sum is σ = 15794898. Its totient is φ = 15794896.

The previous prime is 15794861. The next prime is 15794917. The reversal of 15794897 is 79849751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15062161 + 732736 = 3881^2 + 856^2 .

It is an emirp because it is prime and its reverse (79849751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15794897 - 2⁸ = 15794641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15794297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7897448 + 7897449.

It is an arithmetic number, because the mean of its divisors is an integer number (7897449).

Almost surely, 2^15794897 is an apocalyptic number.

It is an amenable number.

15794897 is a deficient number, since it is larger than the sum of its proper divisors (1).

15794897 is an equidigital number, since it uses as much as digits as its factorization.

15794897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 50.

The square root of 15794897 is about 3974.2794315448. The cubic root of 15794897 is about 250.9028528353.

The spelling of 15794897 in words is "fifteen million, seven hundred ninety-four thousand, eight hundred ninety-seven".