3421813 has 2 divisors, whose sum is σ = 3421814. Its totient is φ = 3421812.

The previous prime is 3421807. The next prime is 3421853. The reversal of 3421813 is 3181243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3411409 + 10404 = 1847^2 + 102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3421813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3421853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710906 + 1710907.

It is an arithmetic number, because the mean of its divisors is an integer number (1710907).

Almost surely, 2^3421813 is an apocalyptic number.

It is an amenable number.

3421813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421813 is an equidigital number, since it uses as much as digits as its factorization.

3421813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

The square root of 3421813 is about 1849.8143150057. The cubic root of 3421813 is about 150.6903438873.

The spelling of 3421813 in words is "three million, four hundred twenty-one thousand, eight hundred thirteen".