15379998 has 16 divisors (see below), whose sum is σ = 31415040. Its totient is φ = 5017496.

The previous prime is 15379993. The next prime is 15380003. The reversal of 15379998 is 89997351.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15379993) and next prime (15380003).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15379998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15379993) 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, 26988 + ... + 27551.

It is an arithmetic number, because the mean of its divisors is an integer number (1963440).

Almost surely, 2^15379998 is an apocalyptic number.

15379998 is an abundant number, since it is smaller than the sum of its proper divisors (16035042).

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

15379998 is a wasteful number, since it uses less digits than its factorization.

15379998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54591.

The product of its digits is 612360, while the sum is 51.

The square root of 15379998 is about 3921.7340552363. The cubic root of 15379998 is about 248.6864329208.

The spelling of 15379998 in words is "fifteen million, three hundred seventy-nine thousand, nine hundred ninety-eight".