15791983 has 8 divisors (see below), whose sum is σ = 16689920. Its totient is φ = 14900760.

The previous prime is 15791981. The next prime is 15792001. The reversal of 15791983 is 38919751.

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 15791983 - 2¹ = 15791981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15791981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3616 + ... + 6682.

It is an arithmetic number, because the mean of its divisors is an integer number (2086240).

Almost surely, 2^15791983 is an apocalyptic number.

15791983 is a deficient number, since it is larger than the sum of its proper divisors (897937).

15791983 is a wasteful number, since it uses less digits than its factorization.

15791983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357.

The product of its digits is 68040, while the sum is 43.

The square root of 15791983 is about 3973.9128072971. The cubic root of 15791983 is about 250.8874222001.

The spelling of 15791983 in words is "fifteen million, seven hundred ninety-one thousand, nine hundred eighty-three".