11517690 has 16 divisors (see below), whose sum is σ = 27642528. Its totient is φ = 3071376.

The previous prime is 11517689. The next prime is 11517697. The reversal of 11517690 is 9671511.

11517690 is nontrivially palindromic in base 4.

It is a super-2 number, since 2×11517690² = 265314365872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 383923 = 11517690 / (1 + 1 + 5 + 1 + 7 + 6 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (11517697) 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, 191932 + ... + 191991.

It is an arithmetic number, because the mean of its divisors is an integer number (1727658).

Almost surely, 2^11517690 is an apocalyptic number.

11517690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11517690 is an abundant number, since it is smaller than the sum of its proper divisors (16124838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11517690 is a wasteful number, since it uses less digits than its factorization.

11517690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383933.

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 11517690 is about 3393.7722374962. The cubic root of 11517690 is about 225.8335501360.

The spelling of 11517690 in words is "eleven million, five hundred seventeen thousand, six hundred ninety".