13943957 has 8 divisors (see below), whose sum is σ = 14593920. Its totient is φ = 13297680.

The previous prime is 13943953. The next prime is 13943971. The reversal of 13943957 is 75934931.

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

It is not a de Polignac number, because 13943957 - 2² = 13943953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13943953) 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, 9407 + ... + 10787.

It is an arithmetic number, because the mean of its divisors is an integer number (1824240).

Almost surely, 2^13943957 is an apocalyptic number.

It is an amenable number.

13943957 is a deficient number, since it is larger than the sum of its proper divisors (649963).

13943957 is a wasteful number, since it uses less digits than its factorization.

13943957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843.

The product of its digits is 102060, while the sum is 41.

The square root of 13943957 is about 3734.1608160335. The cubic root of 13943957 is about 240.6921972781.

The spelling of 13943957 in words is "thirteen million, nine hundred forty-three thousand, nine hundred fifty-seven".