15712489 has 8 divisors (see below), whose sum is σ = 16960832. Its totient is φ = 14469840.

The previous prime is 15712483. The next prime is 15712511. The reversal of 15712489 is 98421751.

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 15712489 - 2⁹ = 15711977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15712483) 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, 5644 + ... + 7954.

It is an arithmetic number, because the mean of its divisors is an integer number (2120104).

Almost surely, 2^15712489 is an apocalyptic number.

It is an amenable number.

15712489 is a deficient number, since it is larger than the sum of its proper divisors (1248343).

15712489 is a wasteful number, since it uses less digits than its factorization.

15712489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847.

The product of its digits is 20160, while the sum is 37.

The square root of 15712489 is about 3963.8982075729. The cubic root of 15712489 is about 250.4657398069.

The spelling of 15712489 in words is "fifteen million, seven hundred twelve thousand, four hundred eighty-nine".