3391887 has 4 divisors (see below), whose sum is σ = 4522520. Its totient is φ = 2261256.

The previous prime is 3391877. The next prime is 3391897. The reversal of 3391887 is 7881933.

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

It is an interprime number because it is at equal distance from previous prime (3391877) and next prime (3391897).

It is not a de Polignac number, because 3391887 - 2⁸ = 3391631 is a prime.

It is a D-number.

It is a Duffinian number.

3391887 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3391877) 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, 565312 + ... + 565317.

It is an arithmetic number, because the mean of its divisors is an integer number (1130630).

Almost surely, 2^3391887 is an apocalyptic number.

3391887 is a deficient number, since it is larger than the sum of its proper divisors (1130633).

3391887 is a wasteful number, since it uses less digits than its factorization.

3391887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130632.

The product of its digits is 36288, while the sum is 39.

The square root of 3391887 is about 1841.7076315203. The cubic root of 3391887 is about 150.2497616743.

It can be divided in two parts, 3391 and 887, that added together give a triangular number (4278 = T₉₂).

The spelling of 3391887 in words is "three million, three hundred ninety-one thousand, eight hundred eighty-seven".