11307857 has 4 divisors (see below), whose sum is σ = 12335856. Its totient is φ = 10279860.

The previous prime is 11307851. The next prime is 11307887. The reversal of 11307857 is 75870311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11307857 - 2¹⁴ = 11291473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11307851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513983 + ... + 514004.

It is an arithmetic number, because the mean of its divisors is an integer number (3083964).

Almost surely, 2^11307857 is an apocalyptic number.

It is an amenable number.

11307857 is a deficient number, since it is larger than the sum of its proper divisors (1027999).

11307857 is a wasteful number, since it uses less digits than its factorization.

11307857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027998.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 11307857 is about 3362.7157179875. The cubic root of 11307857 is about 224.4537001724.

It can be divided in two parts, 113078 and 57, that multiplied together give a palindrome (6445446).

The spelling of 11307857 in words is "eleven million, three hundred seven thousand, eight hundred fifty-seven".