15690097 has 2 divisors, whose sum is σ = 15690098. Its totient is φ = 15690096.

The previous prime is 15690089. The next prime is 15690113. The reversal of 15690097 is 79009651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15689521 + 576 = 3961^2 + 24^2 .

It is a cyclic number.

It is not a de Polignac number, because 15690097 - 2³ = 15690089 is a prime.

It is not a weakly prime, because it can be changed into another prime (15690007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7845048 + 7845049.

It is an arithmetic number, because the mean of its divisors is an integer number (7845049).

Almost surely, 2^15690097 is an apocalyptic number.

It is an amenable number.

15690097 is a deficient number, since it is larger than the sum of its proper divisors (1).

15690097 is an equidigital number, since it uses as much as digits as its factorization.

15690097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 15690097 is about 3961.0727082446. The cubic root of 15690097 is about 250.3467029659.

The spelling of 15690097 in words is "fifteen million, six hundred ninety thousand, ninety-seven".