3157887 has 4 divisors (see below), whose sum is σ = 4210520. Its totient is φ = 2105256.

The previous prime is 3157879. The next prime is 3157919. The reversal of 3157887 is 7887513.

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

It is not a de Polignac number, because 3157887 - 2³ = 3157879 is a prime.

It is a D-number.

It is a Duffinian number.

3157887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157807) 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, 526312 + ... + 526317.

It is an arithmetic number, because the mean of its divisors is an integer number (1052630).

Almost surely, 2^3157887 is an apocalyptic number.

3157887 is a deficient number, since it is larger than the sum of its proper divisors (1052633).

3157887 is a wasteful number, since it uses less digits than its factorization.

3157887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052632.

The product of its digits is 47040, while the sum is 39.

The square root of 3157887 is about 1777.0444563938. The cubic root of 3157887 is about 146.7119631671.

The spelling of 3157887 in words is "three million, one hundred fifty-seven thousand, eight hundred eighty-seven".