11889357 has 4 divisors (see below), whose sum is σ = 15852480. Its totient is φ = 7926236.

The previous prime is 11889343. The next prime is 11889373. The reversal of 11889357 is 75398811.

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 11889357 - 2¹⁹ = 11365069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11889257) 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, 1981557 + ... + 1981562.

It is an arithmetic number, because the mean of its divisors is an integer number (3963120).

Almost surely, 2^11889357 is an apocalyptic number.

It is an amenable number.

11889357 is a deficient number, since it is larger than the sum of its proper divisors (3963123).

11889357 is an equidigital number, since it uses as much as digits as its factorization.

11889357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963122.

The product of its digits is 60480, while the sum is 42.

The square root of 11889357 is about 3448.0946912752. The cubic root of 11889357 is about 228.2370380294.

It can be divided in two parts, 11889 and 357, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 11889357 in words is "eleven million, eight hundred eighty-nine thousand, three hundred fifty-seven".