15379923 has 8 divisors (see below), whose sum is σ = 22084048. Its totient is φ = 9464544.

The previous prime is 15379921. The next prime is 15379927. The reversal of 15379923 is 32997351.

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

It is not a de Polignac number, because 15379923 - 2¹ = 15379921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 394357 = 15379923 / (1 + 5 + 3 + 7 + 9 + 9 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15379921) 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, 197140 + ... + 197217.

It is an arithmetic number, because the mean of its divisors is an integer number (2760506).

Almost surely, 2^15379923 is an apocalyptic number.

15379923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15379923 is a deficient number, since it is larger than the sum of its proper divisors (6704125).

15379923 is a wasteful number, since it uses less digits than its factorization.

15379923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394373.

The product of its digits is 51030, while the sum is 39.

The square root of 15379923 is about 3921.7244931280. The cubic root of 15379923 is about 248.6860286834.

The spelling of 15379923 in words is "fifteen million, three hundred seventy-nine thousand, nine hundred twenty-three".