11670871 has 4 divisors (see below), whose sum is σ = 11730312. Its totient is φ = 11611432.

The previous prime is 11670863. The next prime is 11670877. The reversal of 11670871 is 17807611.

11670871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11670871 - 2³ = 11670863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11670877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29425 + ... + 29818.

It is an arithmetic number, because the mean of its divisors is an integer number (2932578).

Almost surely, 2^11670871 is an apocalyptic number.

11670871 is a deficient number, since it is larger than the sum of its proper divisors (59441).

11670871 is an equidigital number, since it uses as much as digits as its factorization.

11670871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59440.

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 11670871 is about 3416.2656512631. The cubic root of 11670871 is about 226.8303117086.

The spelling of 11670871 in words is "eleven million, six hundred seventy thousand, eight hundred seventy-one".