11887257 has 8 divisors (see below), whose sum is σ = 15873984. Its totient is φ = 7912688.

The previous prime is 11887243. The next prime is 11887277. The reversal of 11887257 is 75278811.

11887257 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11887257 - 2¹⁰ = 11886233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11887277) 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, 438 + ... + 4895.

It is an arithmetic number, because the mean of its divisors is an integer number (1984248).

Almost surely, 2^11887257 is an apocalyptic number.

It is an amenable number.

11887257 is a deficient number, since it is larger than the sum of its proper divisors (3986727).

11887257 is an equidigital number, since it uses as much as digits as its factorization.

11887257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6079.

The product of its digits is 31360, while the sum is 39.

The square root of 11887257 is about 3447.7901618283. The cubic root of 11887257 is about 228.2235995117.

The spelling of 11887257 in words is "eleven million, eight hundred eighty-seven thousand, two hundred fifty-seven".