41396809 has 2 divisors, whose sum is σ = 41396810. Its totient is φ = 41396808.

The previous prime is 41396807. The next prime is 41396813. The reversal of 41396809 is 90869314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30769209 + 10627600 = 5547^2 + 3260^2 .

It is a cyclic number.

It is not a de Polignac number, because 41396809 - 2¹ = 41396807 is a prime.

Together with 41396807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (41396807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20698404 + 20698405.

It is an arithmetic number, because the mean of its divisors is an integer number (20698405).

Almost surely, 2^41396809 is an apocalyptic number.

It is an amenable number.

41396809 is a deficient number, since it is larger than the sum of its proper divisors (1).

41396809 is an equidigital number, since it uses as much as digits as its factorization.

41396809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 41396809 is about 6434.0352035095. The cubic root of 41396809 is about 345.9305801455.

The spelling of 41396809 in words is "forty-one million, three hundred ninety-six thousand, eight hundred nine".