15982423 has 4 divisors (see below), whose sum is σ = 16020808. Its totient is φ = 15944040.

The previous prime is 15982367. The next prime is 15982429. The reversal of 15982423 is 32428951.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15982423 - 2²¹ = 13885271 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 (15982429) 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, 18561 + ... + 19402.

It is an arithmetic number, because the mean of its divisors is an integer number (4005202).

Almost surely, 2^15982423 is an apocalyptic number.

15982423 is a deficient number, since it is larger than the sum of its proper divisors (38385).

15982423 is an equidigital number, since it uses as much as digits as its factorization.

15982423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38384.

The product of its digits is 17280, while the sum is 34.

The square root of 15982423 is about 3997.8022712485. The cubic root of 15982423 is about 251.8919027011.

The spelling of 15982423 in words is "fifteen million, nine hundred eighty-two thousand, four hundred twenty-three".