11855907 has 12 divisors (see below), whose sum is σ = 19571760. Its totient is φ = 6774768.

The previous prime is 11855903. The next prime is 11855911. The reversal of 11855907 is 70955811.

It is an interprime number because it is at equal distance from previous prime (11855903) and next prime (11855911).

It is not a de Polignac number, because 11855907 - 2² = 11855903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11855903) 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 11 ways as a sum of consecutive naturals, for example, 94032 + ... + 94157.

It is an arithmetic number, because the mean of its divisors is an integer number (1630980).

Almost surely, 2^11855907 is an apocalyptic number.

11855907 is a deficient number, since it is larger than the sum of its proper divisors (7715853).

11855907 is a wasteful number, since it uses less digits than its factorization.

11855907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188202 (or 188199 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 11855907 is about 3443.2407699724. The cubic root of 11855907 is about 228.0227931968.

The spelling of 11855907 in words is "eleven million, eight hundred fifty-five thousand, nine hundred seven".