15389966 has 8 divisors (see below), whose sum is σ = 23126040. Its totient is φ = 7681288.

The previous prime is 15389963. The next prime is 15389977. The reversal of 15389966 is 66998351.

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

It is a self number, because there is not a number n which added to its sum of digits gives 15389966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15389963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5381 + ... + 7728.

It is an arithmetic number, because the mean of its divisors is an integer number (2890755).

Almost surely, 2^15389966 is an apocalyptic number.

15389966 is a deficient number, since it is larger than the sum of its proper divisors (7736074).

15389966 is a wasteful number, since it uses less digits than its factorization.

15389966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13698.

The product of its digits is 349920, while the sum is 47.

The square root of 15389966 is about 3923.0047157759. The cubic root of 15389966 is about 248.7401470808.

The spelling of 15389966 in words is "fifteen million, three hundred eighty-nine thousand, nine hundred sixty-six".