13988057 has 4 divisors (see below), whose sum is σ = 14002560. Its totient is φ = 13973556.

The previous prime is 13988053. The next prime is 13988077. The reversal of 13988057 is 75088931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13988057 - 2² = 13988053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13988053) 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 3 ways as a sum of consecutive naturals, for example, 5693 + ... + 7770.

It is an arithmetic number, because the mean of its divisors is an integer number (3500640).

Almost surely, 2^13988057 is an apocalyptic number.

It is an amenable number.

13988057 is a deficient number, since it is larger than the sum of its proper divisors (14503).

13988057 is a wasteful number, since it uses less digits than its factorization.

13988057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14502.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 13988057 is about 3740.0610957577. The cubic root of 13988057 is about 240.9456728033.

The spelling of 13988057 in words is "thirteen million, nine hundred eighty-eight thousand, fifty-seven".