11887172 has 12 divisors (see below), whose sum is σ = 22693776. Its totient is φ = 5403240.

The previous prime is 11887163. The next prime is 11887181. The reversal of 11887172 is 27178811.

It is an interprime number because it is at equal distance from previous prime (11887163) and next prime (11887181).

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, 135038 + ... + 135125.

It is an arithmetic number, because the mean of its divisors is an integer number (1891148).

Almost surely, 2^11887172 is an apocalyptic number.

It is an amenable number.

11887172 is a deficient number, since it is larger than the sum of its proper divisors (10806604).

11887172 is a wasteful number, since it uses less digits than its factorization.

11887172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270178 (or 270176 counting only the distinct ones).

The product of its digits is 6272, while the sum is 35.

The square root of 11887172 is about 3447.7778350700. Note that the first 3 decimals coincide. The cubic root of 11887172 is about 228.2230555384.

The spelling of 11887172 in words is "eleven million, eight hundred eighty-seven thousand, one hundred seventy-two".