4094813 has 2 divisors, whose sum is σ = 4094814. Its totient is φ = 4094812.

The previous prime is 4094809. The next prime is 4094819. The reversal of 4094813 is 3184904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3912484 + 182329 = 1978^2 + 427^2 .

It is a cyclic number.

It is not a de Polignac number, because 4094813 - 2² = 4094809 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4094819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2047406 + 2047407.

It is an arithmetic number, because the mean of its divisors is an integer number (2047407).

Almost surely, 2^4094813 is an apocalyptic number.

It is an amenable number.

4094813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4094813 is an equidigital number, since it uses as much as digits as its factorization.

4094813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4094813 is about 2023.5644294166. The cubic root of 4094813 is about 159.9845427776.

Subtracting from 4094813 its reverse (3184904), we obtain a palindrome (909909).

The spelling of 4094813 in words is "four million, ninety-four thousand, eight hundred thirteen".