11173986 has 12 divisors (see below), whose sum is σ = 24210342. Its totient is φ = 3724656.

The previous prime is 11173973. The next prime is 11173993. The reversal of 11173986 is 68937111.

It can be written as a sum of positive squares in only one way, i.e., 7049025 + 4124961 = 2655^2 + 2031^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11173986.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 310371 + ... + 310406.

Almost surely, 2^11173986 is an apocalyptic number.

11173986 is an abundant number, since it is smaller than the sum of its proper divisors (13036356).

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

11173986 is a wasteful number, since it uses less digits than its factorization.

11173986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620785 (or 620782 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 11173986 is about 3342.7512620594. The cubic root of 11173986 is about 223.5644304731.

The spelling of 11173986 in words is "eleven million, one hundred seventy-three thousand, nine hundred eighty-six".