13922997 has 16 divisors (see below), whose sum is σ = 20597760. Its totient is φ = 8294000.

The previous prime is 13922977. The next prime is 13923011. The reversal of 13922997 is 79922931.

It is a happy number.

It is not a de Polignac number, because 13922997 - 2⁶ = 13922933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13922977) 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 in 15 ways as a sum of consecutive naturals, for example, 1629 + ... + 5522.

It is an arithmetic number, because the mean of its divisors is an integer number (1287360).

Almost surely, 2^13922997 is an apocalyptic number.

It is an amenable number.

13922997 is a deficient number, since it is larger than the sum of its proper divisors (6674763).

13922997 is a wasteful number, since it uses less digits than its factorization.

13922997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224.

The product of its digits is 61236, while the sum is 42.

The square root of 13922997 is about 3731.3532397778. The cubic root of 13922997 is about 240.5715371638.

The spelling of 13922997 in words is "thirteen million, nine hundred twenty-two thousand, nine hundred ninety-seven".