13997804 has 12 divisors (see below), whose sum is σ = 24552528. Its totient is φ = 6982800.

The previous prime is 13997801. The next prime is 13997821. The reversal of 13997804 is 40879931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13997801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1952 + ... + 5639.

It is an arithmetic number, because the mean of its divisors is an integer number (2046044).

Almost surely, 2^13997804 is an apocalyptic number.

It is an amenable number.

13997804 is a deficient number, since it is larger than the sum of its proper divisors (10554724).

13997804 is a wasteful number, since it uses less digits than its factorization.

13997804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056 (or 8054 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 13997804 is about 3741.3639224219. The cubic root of 13997804 is about 241.0016241576.

The spelling of 13997804 in words is "thirteen million, nine hundred ninety-seven thousand, eight hundred four".