11888571 has 4 divisors (see below), whose sum is σ = 15851432. Its totient is φ = 7925712.

The previous prime is 11888551. The next prime is 11888573. The reversal of 11888571 is 17588811.

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

It is not a de Polignac number, because 11888571 - 2¹⁴ = 11872187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11888573) 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, 1981426 + ... + 1981431.

It is an arithmetic number, because the mean of its divisors is an integer number (3962858).

Almost surely, 2^11888571 is an apocalyptic number.

11888571 is a deficient number, since it is larger than the sum of its proper divisors (3962861).

11888571 is an equidigital number, since it uses as much as digits as its factorization.

11888571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962860.

The product of its digits is 17920, while the sum is 39.

The square root of 11888571 is about 3447.9807134031. The cubic root of 11888571 is about 228.2320083695.

The spelling of 11888571 in words is "eleven million, eight hundred eighty-eight thousand, five hundred seventy-one".