3187668 has 96 divisors (see below), whose sum is σ = 9031680. Its totient is φ = 864000.

The previous prime is 3187663. The next prime is 3187669. The reversal of 3187668 is 8667813.

It is a super-2 number, since 2×3187668² = 20322454556448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3187663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77728 + ... + 77768.

It is an arithmetic number, because the mean of its divisors is an integer number (94080).

Almost surely, 2^3187668 is an apocalyptic number.

3187668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3187668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4515840).

3187668 is an abundant number, since it is smaller than the sum of its proper divisors (5844012).

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

3187668 is a wasteful number, since it uses less digits than its factorization.

3187668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 107 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 3187668 is about 1785.4041559266. The cubic root of 3187668 is about 147.1717184363.

The spelling of 3187668 in words is "three million, one hundred eighty-seven thousand, six hundred sixty-eight".