12071887 has 8 divisors (see below), whose sum is σ = 12866256. Its totient is φ = 11286912.

The previous prime is 12071869. The next prime is 12071923. The reversal of 12071887 is 78817021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12071887 - 2²³ = 3683279 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 (12071827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408 + ... + 4930.

It is an arithmetic number, because the mean of its divisors is an integer number (1608282).

Almost surely, 2^12071887 is an apocalyptic number.

12071887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12071887 is a deficient number, since it is larger than the sum of its proper divisors (794369).

12071887 is a wasteful number, since it uses less digits than its factorization.

12071887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 12071887 is about 3474.4621166448. The cubic root of 12071887 is about 229.3991057085.

The spelling of 12071887 in words is "twelve million, seventy-one thousand, eight hundred eighty-seven".