13930557 has 8 divisors (see below), whose sum is σ = 18605376. Its totient is φ = 9271392.

The previous prime is 13930541. The next prime is 13930559. The reversal of 13930557 is 75503931.

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

It is not a de Polignac number, because 13930557 - 2⁴ = 13930541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13930559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1648 + ... + 5529.

It is an arithmetic number, because the mean of its divisors is an integer number (2325672).

Almost surely, 2^13930557 is an apocalyptic number.

It is an amenable number.

13930557 is a deficient number, since it is larger than the sum of its proper divisors (4674819).

13930557 is an equidigital number, since it uses as much as digits as its factorization.

13930557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 13930557 is about 3732.3661395956. The cubic root of 13930557 is about 240.6150716542.

The spelling of 13930557 in words is "thirteen million, nine hundred thirty thousand, five hundred fifty-seven".