13947392 has 20 divisors (see below), whose sum is σ = 27868566. Its totient is φ = 6973440.

The previous prime is 13947359. The next prime is 13947397. The reversal of 13947392 is 29374931.

It can be written as a sum of positive squares in only one way, i.e., 7311616 + 6635776 = 2704^2 + 2576^2 .

It is not an unprimeable number, because it can be changed into a prime (13947397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13109 + ... + 14132.

Almost surely, 2^13947392 is an apocalyptic number.

It is an amenable number.

13947392 is a deficient number, since it is larger than the sum of its proper divisors (13921174).

13947392 is an frugal number, since it uses more digits than its factorization.

13947392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27259 (or 27243 counting only the distinct ones).

The product of its digits is 40824, while the sum is 38.

The square root of 13947392 is about 3734.6207304089. The cubic root of 13947392 is about 240.7119599565.

The spelling of 13947392 in words is "thirteen million, nine hundred forty-seven thousand, three hundred ninety-two".