13857011 has 4 divisors (see below), whose sum is σ = 15836592. Its totient is φ = 11877432.

The previous prime is 13857001. The next prime is 13857029. The reversal of 13857011 is 11075831.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-13857011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13857001) 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, 989780 + ... + 989793.

It is an arithmetic number, because the mean of its divisors is an integer number (3959148).

Almost surely, 2^13857011 is an apocalyptic number.

13857011 is a deficient number, since it is larger than the sum of its proper divisors (1979581).

13857011 is an equidigital number, since it uses as much as digits as its factorization.

13857011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979580.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 13857011 is about 3722.5006380120. The cubic root of 13857011 is about 240.1908840198.

The spelling of 13857011 in words is "thirteen million, eight hundred fifty-seven thousand, eleven".