15328897 has 2 divisors, whose sum is σ = 15328898. Its totient is φ = 15328896.

The previous prime is 15328889. The next prime is 15328919. The reversal of 15328897 is 79882351.

15328897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10817521 + 4511376 = 3289^2 + 2124^2 .

It is a cyclic number.

It is not a de Polignac number, because 15328897 - 2³ = 15328889 is a prime.

It is not a weakly prime, because it can be changed into another prime (15328847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7664448 + 7664449.

It is an arithmetic number, because the mean of its divisors is an integer number (7664449).

Almost surely, 2^15328897 is an apocalyptic number.

It is an amenable number.

15328897 is a deficient number, since it is larger than the sum of its proper divisors (1).

15328897 is an equidigital number, since it uses as much as digits as its factorization.

15328897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 15328897 is about 3915.2135318524. The cubic root of 15328897 is about 248.4107019366.

The spelling of 15328897 in words is "fifteen million, three hundred twenty-eight thousand, eight hundred ninety-seven".