15920983 has 6 divisors (see below), whose sum is σ = 17240064. Its totient is φ = 14696136.

The previous prime is 15920981. The next prime is 15920999. The reversal of 15920983 is 38902951.

It is not a de Polignac number, because 15920983 - 2¹ = 15920981 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 (15920981) 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 5 ways as a sum of consecutive naturals, for example, 46935 + ... + 47272.

It is an arithmetic number, because the mean of its divisors is an integer number (2873344).

Almost surely, 2^15920983 is an apocalyptic number.

15920983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15920983 is a deficient number, since it is larger than the sum of its proper divisors (1319081).

15920983 is an equidigital number, since it uses as much as digits as its factorization.

15920983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94233 (or 94220 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 15920983 is about 3990.1106500948. The cubic root of 15920983 is about 251.5687119822.

The spelling of 15920983 in words is "fifteen million, nine hundred twenty thousand, nine hundred eighty-three".