3891060 has 36 divisors (see below), whose sum is σ = 11803428. Its totient is φ = 1037568.

The previous prime is 3891053. The next prime is 3891061. The reversal of 3891060 is 601983.

It can be written as a sum of positive squares in 2 ways, for example, as 1028196 + 2862864 = 1014^2 + 1692^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3891061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10629 + ... + 10988.

It is an arithmetic number, because the mean of its divisors is an integer number (327873).

Almost surely, 2^3891060 is an apocalyptic number.

3891060 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3891060 is an abundant number, since it is smaller than the sum of its proper divisors (7912368).

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

3891060 is a wasteful number, since it uses less digits than its factorization.

3891060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21632 (or 21627 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 3891060 is about 1972.5769946950. The cubic root of 3891060 is about 157.2857252457.

The spelling of 3891060 in words is "three million, eight hundred ninety-one thousand, sixty".