13861957 has 8 divisors (see below), whose sum is σ = 14069376. Its totient is φ = 13656192.

The previous prime is 13861943. The next prime is 13861973. The reversal of 13861957 is 75916831.

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

It is a cyclic number.

It is not a de Polignac number, because 13861957 - 2⁷ = 13861829 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 (13861907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37588 + ... + 37954.

It is an arithmetic number, because the mean of its divisors is an integer number (1758672).

Almost surely, 2^13861957 is an apocalyptic number.

It is an amenable number.

13861957 is a deficient number, since it is larger than the sum of its proper divisors (207419).

13861957 is a wasteful number, since it uses less digits than its factorization.

13861957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its digits is 45360, while the sum is 40.

The square root of 13861957 is about 3723.1649171102. The cubic root of 13861957 is about 240.2194578297.

The spelling of 13861957 in words is "thirteen million, eight hundred sixty-one thousand, nine hundred fifty-seven".