13612997 has 8 divisors (see below), whose sum is σ = 13998744. Its totient is φ = 13232128.

The previous prime is 13612981. The next prime is 13613021. The reversal of 13612997 is 79921631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2114116 + 11498881 = 1454^2 + 3391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13612997 - 2⁴ = 13612981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13612997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13612927) 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, 4853 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (1749843).

Almost surely, 2^13612997 is an apocalyptic number.

It is an amenable number.

13612997 is a deficient number, since it is larger than the sum of its proper divisors (385747).

13612997 is a wasteful number, since it uses less digits than its factorization.

13612997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439.

The product of its digits is 20412, while the sum is 38.

The square root of 13612997 is about 3689.5795153378. The cubic root of 13612997 is about 238.7726519264.

The spelling of 13612997 in words is "thirteen million, six hundred twelve thousand, nine hundred ninety-seven".