15338489 has 4 divisors (see below), whose sum is σ = 15363060. Its totient is φ = 15313920.

The previous prime is 15338473. The next prime is 15338501. The reversal of 15338489 is 98483351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98483351 = 73 ⋅1349087.

It can be written as a sum of positive squares in 2 ways, for example, as 12390400 + 2948089 = 3520^2 + 1717^2 .

It is a cyclic number.

It is not a de Polignac number, because 15338489 - 2⁴ = 15338473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15338989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11324 + ... + 12605.

It is an arithmetic number, because the mean of its divisors is an integer number (3840765).

Almost surely, 2^15338489 is an apocalyptic number.

It is an amenable number.

15338489 is a deficient number, since it is larger than the sum of its proper divisors (24571).

15338489 is an equidigital number, since it uses as much as digits as its factorization.

15338489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24570.

The product of its digits is 103680, while the sum is 41.

The square root of 15338489 is about 3916.4383053994. The cubic root of 15338489 is about 248.4625051556.

The spelling of 15338489 in words is "fifteen million, three hundred thirty-eight thousand, four hundred eighty-nine".