15923983 has 2 divisors, whose sum is σ = 15923984. Its totient is φ = 15923982.

The previous prime is 15923953. The next prime is 15924017. The reversal of 15923983 is 38932951.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15923983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15923953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7961991 + 7961992.

It is an arithmetic number, because the mean of its divisors is an integer number (7961992).

Almost surely, 2^15923983 is an apocalyptic number.

15923983 is a deficient number, since it is larger than the sum of its proper divisors (1).

15923983 is an equidigital number, since it uses as much as digits as its factorization.

15923983 is an evil number, because the sum of its binary digits is even.

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

The square root of 15923983 is about 3990.4865618117. The cubic root of 15923983 is about 251.5845120689.

It can be divided in two parts, 159 and 23983, that added together give a palindrome (24142).

The spelling of 15923983 in words is "fifteen million, nine hundred twenty-three thousand, nine hundred eighty-three".