3865801 has 2 divisors, whose sum is σ = 3865802. Its totient is φ = 3865800.

The previous prime is 3865777. The next prime is 3865819. The reversal of 3865801 is 1085683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3701776 + 164025 = 1924^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 3865801 - 2⁵ = 3865769 is a prime.

It is not a weakly prime, because it can be changed into another prime (3865601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932900 + 1932901.

It is an arithmetic number, because the mean of its divisors is an integer number (1932901).

Almost surely, 2^3865801 is an apocalyptic number.

It is an amenable number.

3865801 is a deficient number, since it is larger than the sum of its proper divisors (1).

3865801 is an equidigital number, since it uses as much as digits as its factorization.

3865801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 3865801 is about 1966.1640318142. The cubic root of 3865801 is about 156.9446435537.

The spelling of 3865801 in words is "three million, eight hundred sixty-five thousand, eight hundred one".