13957870 has 16 divisors (see below), whose sum is σ = 25408080. Its totient is φ = 5520064.

The previous prime is 13957841. The next prime is 13957871. The reversal of 13957870 is 7875931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13957871) 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, 6952 + ... + 8731.

It is an arithmetic number, because the mean of its divisors is an integer number (1588005).

Almost surely, 2^13957870 is an apocalyptic number.

13957870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13957870 is a deficient number, since it is larger than the sum of its proper divisors (11450210).

13957870 is a wasteful number, since it uses less digits than its factorization.

13957870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15779.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 13957870 is about 3736.0232868653. The cubic root of 13957870 is about 240.7722232799.

The spelling of 13957870 in words is "thirteen million, nine hundred fifty-seven thousand, eight hundred seventy".