809492441 has 2 divisors, whose sum is σ = 809492442. Its totient is φ = 809492440.

The previous prime is 809492419. The next prime is 809492461. The reversal of 809492441 is 144294908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795014416 + 14478025 = 28196^2 + 3805^2 .

It is a cyclic number.

It is not a de Polignac number, because 809492441 - 2⁶ = 809492377 is a prime.

It is a super-2 number, since 2×809492441² = 1310556024072276962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (809492461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404746220 + 404746221.

It is an arithmetic number, because the mean of its divisors is an integer number (404746221).

Almost surely, 2^809492441 is an apocalyptic number.

It is an amenable number.

809492441 is a deficient number, since it is larger than the sum of its proper divisors (1).

809492441 is an equidigital number, since it uses as much as digits as its factorization.

809492441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 809492441 is about 28451.5806415039. The cubic root of 809492441 is about 931.9750069280.

The spelling of 809492441 in words is "eight hundred nine million, four hundred ninety-two thousand, four hundred forty-one".