15328971 has 48 divisors (see below), whose sum is σ = 26956800. Its totient is φ = 8205120.

The previous prime is 15328969. The next prime is 15328979. The reversal of 15328971 is 17982351.

It is not a de Polignac number, because 15328971 - 2¹ = 15328969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15328979) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102805 + ... + 102953.

It is an arithmetic number, because the mean of its divisors is an integer number (561600).

Almost surely, 2^15328971 is an apocalyptic number.

15328971 is a deficient number, since it is larger than the sum of its proper divisors (11627829).

15328971 is a wasteful number, since it uses less digits than its factorization.

15328971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 253 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 15328971 is about 3915.2229821557. Note that the first 3 decimals coincide. The cubic root of 15328971 is about 248.4111016688.

The spelling of 15328971 in words is "fifteen million, three hundred twenty-eight thousand, nine hundred seventy-one".