13731982 has 16 divisors (see below), whose sum is σ = 22896432. Its totient is φ = 6123520.

The previous prime is 13731973. The next prime is 13731983. The reversal of 13731982 is 28913731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13731983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4723 + ... + 7054.

It is an arithmetic number, because the mean of its divisors is an integer number (1431027).

Almost surely, 2^13731982 is an apocalyptic number.

13731982 is a deficient number, since it is larger than the sum of its proper divisors (9164450).

13731982 is a wasteful number, since it uses less digits than its factorization.

13731982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11843.

The product of its digits is 9072, while the sum is 34.

The square root of 13731982 is about 3705.6689004821. The cubic root of 13731982 is about 239.4663025014.

The spelling of 13731982 in words is "thirteen million, seven hundred thirty-one thousand, nine hundred eighty-two".