11698857 has 8 divisors (see below), whose sum is σ = 17331680. Its totient is φ = 7799220.

The previous prime is 11698847. The next prime is 11698877. The reversal of 11698857 is 75889611.

It is not a de Polignac number, because 11698857 - 2¹⁸ = 11436713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11698807) 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, 216619 + ... + 216672.

It is an arithmetic number, because the mean of its divisors is an integer number (2166460).

Almost surely, 2^11698857 is an apocalyptic number.

It is an amenable number.

11698857 is a deficient number, since it is larger than the sum of its proper divisors (5632823).

11698857 is an equidigital number, since it uses as much as digits as its factorization.

11698857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433300 (or 433294 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 11698857 is about 3420.3591916639. The cubic root of 11698857 is about 227.0114751585.

The spelling of 11698857 in words is "eleven million, six hundred ninety-eight thousand, eight hundred fifty-seven".