3117888 has 42 divisors (see below), whose sum is σ = 8938514. Its totient is φ = 1039104.

The previous prime is 3117853. The next prime is 3117889. The reversal of 3117888 is 8887113.

It can be written as a sum of positive squares in only one way, i.e., 2286144 + 831744 = 1512^2 + 912^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3117889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2131 + ... + 3282.

Almost surely, 2^3117888 is an apocalyptic number.

It is an amenable number.

3117888 is an abundant number, since it is smaller than the sum of its proper divisors (5820626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3117888 is a wasteful number, since it uses less digits than its factorization.

3117888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431 (or 5418 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 3117888 is about 1765.7542297840. The cubic root of 3117888 is about 146.0898927242.

It can be divided in two parts, 3117 and 888, that added together give a triangular number (4005 = T₈₉).

The spelling of 3117888 in words is "three million, one hundred seventeen thousand, eight hundred eighty-eight".