3866013 has 12 divisors (see below), whose sum is σ = 5720988. Its totient is φ = 2514240.

The previous prime is 3866011. The next prime is 3866033. The reversal of 3866013 is 3106683.

It can be written as a sum of positive squares in 2 ways, for example, as 1375929 + 2490084 = 1173^2 + 1578^2 .

It is not a de Polignac number, because 3866013 - 2¹ = 3866011 is a prime.

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 Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866011) 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, 4870 + ... + 5607.

It is an arithmetic number, because the mean of its divisors is an integer number (476749).

Almost surely, 2^3866013 is an apocalyptic number.

It is an amenable number.

3866013 is a deficient number, since it is larger than the sum of its proper divisors (1854975).

3866013 is a wasteful number, since it uses less digits than its factorization.

3866013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524 (or 10521 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 3866013 is about 1966.2179431589. The cubic root of 3866013 is about 156.9475124422.

The spelling of 3866013 in words is "three million, eight hundred sixty-six thousand, thirteen".