3867390 has 48 divisors (see below), whose sum is σ = 10181808. Its totient is φ = 1018368.

The previous prime is 3867389. The next prime is 3867401. The reversal of 3867390 is 937683.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8509 + ... + 8951.

It is an arithmetic number, because the mean of its divisors is an integer number (212121).

Almost surely, 2^3867390 is an apocalyptic number.

3867390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3867390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5090904).

3867390 is an abundant number, since it is smaller than the sum of its proper divisors (6314418).

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

3867390 is a wasteful number, since it uses less digits than its factorization.

3867390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 3867390 is about 1966.5680766249. The cubic root of 3867390 is about 156.9661441325.

It can be divided in two parts, 386 and 7390, that added together give a 5-th power (7776 = 6⁵).

The spelling of 3867390 in words is "three million, eight hundred sixty-seven thousand, three hundred ninety".