15997482 has 24 divisors (see below), whose sum is σ = 34821540. Its totient is φ = 5307840.

The previous prime is 15997481. The next prime is 15997517. The reversal of 15997482 is 28479951.

It can be written as a sum of positive squares in 2 ways, for example, as 14356521 + 1640961 = 3789^2 + 1281^2 .

It is not an unprimeable number, because it can be changed into a prime (15997481) 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 11 ways as a sum of consecutive naturals, for example, 2182 + ... + 6062.

Almost surely, 2^15997482 is an apocalyptic number.

15997482 is an abundant number, since it is smaller than the sum of its proper divisors (18824058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15997482 is a wasteful number, since it uses less digits than its factorization.

15997482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118 (or 4115 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 15997482 is about 3999.6852376156. The cubic root of 15997482 is about 251.9709906138.

The spelling of 15997482 in words is "fifteen million, nine hundred ninety-seven thousand, four hundred eighty-two".