13926657 has 8 divisors (see below), whose sum is σ = 19168000. Its totient is φ = 8984880.

The previous prime is 13926637. The next prime is 13926659. The reversal of 13926657 is 75662931.

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

It is not a de Polignac number, because 13926657 - 2¹⁰ = 13925633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13926659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74782 + ... + 74967.

It is an arithmetic number, because the mean of its divisors is an integer number (2396000).

Almost surely, 2^13926657 is an apocalyptic number.

It is an amenable number.

13926657 is a deficient number, since it is larger than the sum of its proper divisors (5241343).

13926657 is a wasteful number, since it uses less digits than its factorization.

13926657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149783.

The product of its digits is 68040, while the sum is 39.

The square root of 13926657 is about 3731.8436462424. The cubic root of 13926657 is about 240.5926153527.

It can be divided in two parts, 139 and 26657, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 13926657 in words is "thirteen million, nine hundred twenty-six thousand, six hundred fifty-seven".