15980393 has 8 divisors (see below), whose sum is σ = 18774336. Its totient is φ = 13410000.

The previous prime is 15980389. The next prime is 15980429. The reversal of 15980393 is 39308951.

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

It is a cyclic number.

It is not a de Polignac number, because 15980393 - 2² = 15980389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15980303) 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, 55733 + ... + 56018.

It is an arithmetic number, because the mean of its divisors is an integer number (2346792).

Almost surely, 2^15980393 is an apocalyptic number.

15980393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15980393 is a deficient number, since it is larger than the sum of its proper divisors (2793943).

15980393 is a wasteful number, since it uses less digits than its factorization.

15980393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111775.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 15980393 is about 3997.5483736911. The cubic root of 15980393 is about 251.8812376053.

The spelling of 15980393 in words is "fifteen million, nine hundred eighty thousand, three hundred ninety-three".