11432857 has 4 divisors (see below), whose sum is σ = 12105396. Its totient is φ = 10760320.

The previous prime is 11432849. The next prime is 11432867. The reversal of 11432857 is 75823411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10686361 + 746496 = 3269^2 + 864^2 .

It is not a de Polignac number, because 11432857 - 2³ = 11432849 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11432867) 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, 336244 + ... + 336277.

It is an arithmetic number, because the mean of its divisors is an integer number (3026349).

Almost surely, 2^11432857 is an apocalyptic number.

11432857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11432857 is a deficient number, since it is larger than the sum of its proper divisors (672539).

11432857 is an equidigital number, since it uses as much as digits as its factorization.

11432857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672538.

The product of its digits is 6720, while the sum is 31.

The square root of 11432857 is about 3381.2508040664. The cubic root of 11432857 is about 225.2777278286.

The spelling of 11432857 in words is "eleven million, four hundred thirty-two thousand, eight hundred fifty-seven".