15089664 has 60 divisors (see below), whose sum is σ = 40368944. Its totient is φ = 5013504.

The previous prime is 15089651. The next prime is 15089671. The reversal of 15089664 is 46698051.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48999 + ... + 49305.

Almost surely, 2^15089664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15089664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20184472).

15089664 is an abundant number, since it is smaller than the sum of its proper divisors (25279280).

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

15089664 is an frugal number, since it uses more digits than its factorization.

15089664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 15089664 is about 3884.5416718063. The cubic root of 15089664 is about 247.1116325154. Note that the first 3 decimals are identical.

It can be divided in two parts, 15089 and 664, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 15089664 in words is "fifteen million, eighty-nine thousand, six hundred sixty-four".