13989392 has 10 divisors (see below), whose sum is σ = 27104478. Its totient is φ = 6994688.

The previous prime is 13989389. The next prime is 13989407. The reversal of 13989392 is 29398931.

It can be written as a sum of positive squares in only one way, i.e., 13075456 + 913936 = 3616^2 + 956^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437153 + ... + 437184.

Almost surely, 2^13989392 is an apocalyptic number.

It is an amenable number.

13989392 is a deficient number, since it is larger than the sum of its proper divisors (13115086).

13989392 is an equidigital number, since it uses as much as digits as its factorization.

13989392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874345 (or 874339 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 13989392 is about 3740.2395645199. The cubic root of 13989392 is about 240.9533377287.

The spelling of 13989392 in words is "thirteen million, nine hundred eighty-nine thousand, three hundred ninety-two".