3864691 has 2 divisors, whose sum is σ = 3864692. Its totient is φ = 3864690.

The previous prime is 3864683. The next prime is 3864697. The reversal of 3864691 is 1964683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3864691 - 2³ = 3864683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3864691.

It is not a weakly prime, because it can be changed into another prime (3864697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932345 + 1932346.

It is an arithmetic number, because the mean of its divisors is an integer number (1932346).

Almost surely, 2^3864691 is an apocalyptic number.

3864691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3864691 is an equidigital number, since it uses as much as digits as its factorization.

3864691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 3864691 is about 1965.8817360157. The cubic root of 3864691 is about 156.9296207740.

The spelling of 3864691 in words is "three million, eight hundred sixty-four thousand, six hundred ninety-one".