13992437 has 2 divisors, whose sum is σ = 13992438. Its totient is φ = 13992436.

The previous prime is 13992431. The next prime is 13992443. The reversal of 13992437 is 73429931.

It is a balanced prime because it is at equal distance from previous prime (13992431) and next prime (13992443).

It can be written as a sum of positive squares in only one way, i.e., 13147876 + 844561 = 3626^2 + 919^2 .

It is an emirp because it is prime and its reverse (73429931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13992437 - 2¹² = 13988341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13992437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13992431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6996218 + 6996219.

It is an arithmetic number, because the mean of its divisors is an integer number (6996219).

Almost surely, 2^13992437 is an apocalyptic number.

It is an amenable number.

13992437 is a deficient number, since it is larger than the sum of its proper divisors (1).

13992437 is an equidigital number, since it uses as much as digits as its factorization.

13992437 is an odious number, because the sum of its binary digits is odd.

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

The square root of 13992437 is about 3740.6466018591. The cubic root of 13992437 is about 240.9708188241.

The spelling of 13992437 in words is "thirteen million, nine hundred ninety-two thousand, four hundred thirty-seven".