11271870 has 24 divisors (see below), whose sum is σ = 29307096. Its totient is φ = 3005808.

The previous prime is 11271859. The next prime is 11271893. The reversal of 11271870 is 7817211.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62532 + ... + 62711.

It is an arithmetic number, because the mean of its divisors is an integer number (1221129).

Almost surely, 2^11271870 is an apocalyptic number.

11271870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11271870 is an abundant number, since it is smaller than the sum of its proper divisors (18035226).

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

11271870 is a wasteful number, since it uses less digits than its factorization.

11271870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125256 (or 125253 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 11271870 is about 3357.3605704482. The cubic root of 11271870 is about 224.2153408551.

The spelling of 11271870 in words is "eleven million, two hundred seventy-one thousand, eight hundred seventy".