11695988 has 12 divisors (see below), whose sum is σ = 20967492. Its totient is φ = 5705280.

The previous prime is 11695979. The next prime is 11695991. The reversal of 11695988 is 88959611.

It can be written as a sum of positive squares in 2 ways, for example, as 1532644 + 10163344 = 1238^2 + 3188^2 .

It is a super-2 number, since 2×11695988² = 273592270592288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35495 + ... + 35822.

It is an arithmetic number, because the mean of its divisors is an integer number (1747291).

Almost surely, 2^11695988 is an apocalyptic number.

It is an amenable number.

11695988 is a deficient number, since it is larger than the sum of its proper divisors (9271504).

11695988 is a wasteful number, since it uses less digits than its factorization.

11695988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71362 (or 71360 counting only the distinct ones).

The product of its digits is 155520, while the sum is 47.

The square root of 11695988 is about 3419.9397655514. The cubic root of 11695988 is about 226.9929163890.

The spelling of 11695988 in words is "eleven million, six hundred ninety-five thousand, nine hundred eighty-eight".