3101887 has 4 divisors (see below), whose sum is σ = 3106480. Its totient is φ = 3097296.

The previous prime is 3101881. The next prime is 3101897. The reversal of 3101887 is 7881013.

It is a happy number.

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 3101887 - 2⁷ = 3101759 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 (3101881) 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, 1062 + ... + 2707.

It is an arithmetic number, because the mean of its divisors is an integer number (776620).

Almost surely, 2^3101887 is an apocalyptic number.

3101887 is a deficient number, since it is larger than the sum of its proper divisors (4593).

3101887 is an equidigital number, since it uses as much as digits as its factorization.

3101887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 3101887 is about 1761.2174766337. The cubic root of 3101887 is about 145.8395528957.

It can be divided in two parts, 310 and 1887, that added together give a cube (2197 = 13³).

The spelling of 3101887 in words is "three million, one hundred one thousand, eight hundred eighty-seven".