15328489 has 8 divisors (see below), whose sum is σ = 16771968. Its totient is φ = 13893360.

The previous prime is 15328487. The next prime is 15328513. The reversal of 15328489 is 98482351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15328489 - 2¹ = 15328487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15328483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2139 + ... + 5935.

It is an arithmetic number, because the mean of its divisors is an integer number (2096496).

Almost surely, 2^15328489 is an apocalyptic number.

It is an amenable number.

15328489 is a deficient number, since it is larger than the sum of its proper divisors (1443479).

15328489 is a wasteful number, since it uses less digits than its factorization.

15328489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175.

The product of its digits is 69120, while the sum is 40.

The square root of 15328489 is about 3915.1614270679. The cubic root of 15328489 is about 248.4084979844.

The spelling of 15328489 in words is "fifteen million, three hundred twenty-eight thousand, four hundred eighty-nine".