13402997 has 8 divisors (see below), whose sum is σ = 14083200. Its totient is φ = 12730960.

The previous prime is 13402993. The next prime is 13403041. The reversal of 13402997 is 79920431.

13402997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13402997 - 2² = 13402993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402993) 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, 1472 + ... + 5382.

It is an arithmetic number, because the mean of its divisors is an integer number (1760400).

Almost surely, 2^13402997 is an apocalyptic number.

It is an amenable number.

13402997 is a deficient number, since it is larger than the sum of its proper divisors (680203).

13402997 is a wasteful number, since it uses less digits than its factorization.

13402997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 13402997 is about 3661.0103796630. The cubic root of 13402997 is about 237.5384801916.

The spelling of 13402997 in words is "thirteen million, four hundred two thousand, nine hundred ninety-seven".