15989089 has 8 divisors (see below), whose sum is σ = 16883840. Its totient is φ = 15099696.

The previous prime is 15989021. The next prime is 15989119. The reversal of 15989089 is 98098951.

It is a happy number.

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 15989089 - 2¹³ = 15980897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15989489) 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, 5827 + ... + 8119.

It is an arithmetic number, because the mean of its divisors is an integer number (2110480).

Almost surely, 2^15989089 is an apocalyptic number.

15989089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

15989089 is a deficient number, since it is larger than the sum of its proper divisors (894751).

15989089 is a wasteful number, since it uses less digits than its factorization.

15989089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679.

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 15989089 is about 3998.6358924013. The cubic root of 15989089 is about 251.9269177930.

The spelling of 15989089 in words is "fifteen million, nine hundred eighty-nine thousand, eighty-nine".