3679891 has 2 divisors, whose sum is σ = 3679892. Its totient is φ = 3679890.

The previous prime is 3679877. The next prime is 3679913. The reversal of 3679891 is 1989763.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3679891 is a prime.

It is not a weakly prime, because it can be changed into another prime (3679831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839945 + 1839946.

It is an arithmetic number, because the mean of its divisors is an integer number (1839946).

Almost surely, 2^3679891 is an apocalyptic number.

3679891 is a deficient number, since it is larger than the sum of its proper divisors (1).

3679891 is an equidigital number, since it uses as much as digits as its factorization.

3679891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 3679891 is about 1918.3041990258. The cubic root of 3679891 is about 154.3873282620.

The spelling of 3679891 in words is "three million, six hundred seventy-nine thousand, eight hundred ninety-one".