11917087 has 8 divisors (see below), whose sum is σ = 14667296. Its totient is φ = 9428832.

The previous prime is 11917067. The next prime is 11917097. The reversal of 11917087 is 78071911.

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

It is not a de Polignac number, because 11917087 - 2⁷ = 11916959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11917007) 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, 65388 + ... + 65569.

It is an arithmetic number, because the mean of its divisors is an integer number (1833412).

Almost surely, 2^11917087 is an apocalyptic number.

11917087 is a deficient number, since it is larger than the sum of its proper divisors (2750209).

11917087 is a wasteful number, since it uses less digits than its factorization.

11917087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130977.

The product of its (nonzero) digits is 3528, while the sum is 34.

The square root of 11917087 is about 3452.1134106515. The cubic root of 11917087 is about 228.4143422341.

Adding to 11917087 its reverse (78071911), we get a palindrome (89988998).

The spelling of 11917087 in words is "eleven million, nine hundred seventeen thousand, eighty-seven".