13857746 has 8 divisors (see below), whose sum is σ = 23756160. Its totient is φ = 5939028.

The previous prime is 13857731. The next prime is 13857749. The reversal of 13857746 is 64775831.

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

It is not an unprimeable number, because it can be changed into a prime (13857749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494906 + ... + 494933.

It is an arithmetic number, because the mean of its divisors is an integer number (2969520).

Almost surely, 2^13857746 is an apocalyptic number.

13857746 is a deficient number, since it is larger than the sum of its proper divisors (9898414).

13857746 is an equidigital number, since it uses as much as digits as its factorization.

13857746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989848.

The product of its digits is 141120, while the sum is 41.

The square root of 13857746 is about 3722.5993606618. The cubic root of 13857746 is about 240.1951306590.

The spelling of 13857746 in words is "thirteen million, eight hundred fifty-seven thousand, seven hundred forty-six".