15997093 has 16 divisors (see below), whose sum is σ = 18910080. Its totient is φ = 13248000.

The previous prime is 15997073. The next prime is 15997099. The reversal of 15997093 is 39079951.

It is a cyclic number.

It is not a de Polignac number, because 15997093 - 2⁹ = 15996581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15997099) 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 15 ways as a sum of consecutive naturals, for example, 39693 + ... + 40093.

It is an arithmetic number, because the mean of its divisors is an integer number (1181880).

Almost surely, 2^15997093 is an apocalyptic number.

It is an amenable number.

15997093 is a deficient number, since it is larger than the sum of its proper divisors (2912987).

15997093 is a wasteful number, since it uses less digits than its factorization.

15997093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 15997093 is about 3999.6366084933. The cubic root of 15997093 is about 251.9689482609.

The spelling of 15997093 in words is "fifteen million, nine hundred ninety-seven thousand, ninety-three".