15382993 has 4 divisors (see below), whose sum is σ = 15432768. Its totient is φ = 15333220.

The previous prime is 15382981. The next prime is 15383003. The reversal of 15382993 is 39928351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15382993 - 2⁹ = 15382481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15382933) 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, 24421 + ... + 25042.

It is an arithmetic number, because the mean of its divisors is an integer number (3858192).

Almost surely, 2^15382993 is an apocalyptic number.

It is an amenable number.

15382993 is a deficient number, since it is larger than the sum of its proper divisors (49775).

15382993 is an equidigital number, since it uses as much as digits as its factorization.

15382993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49774.

The product of its digits is 58320, while the sum is 40.

The square root of 15382993 is about 3922.1158830407. The cubic root of 15382993 is about 248.7025743951.

The spelling of 15382993 in words is "fifteen million, three hundred eighty-two thousand, nine hundred ninety-three".