15379983 has 16 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 10128312.

The previous prime is 15379967. The next prime is 15379993. The reversal of 15379983 is 38997351.

It is a happy number.

It is not a de Polignac number, because 15379983 - 2⁴ = 15379967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15379913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191 + ... + 5672.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^15379983 is an apocalyptic number.

15379983 is a deficient number, since it is larger than the sum of its proper divisors (7683057).

15379983 is an equidigital number, since it uses as much as digits as its factorization.

15379983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955 (or 6949 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 15379983 is about 3921.7321428165. The cubic root of 15379983 is about 248.6863520734.

The spelling of 15379983 in words is "fifteen million, three hundred seventy-nine thousand, nine hundred eighty-three".