810465841 has 2 divisors, whose sum is σ = 810465842. Its totient is φ = 810465840.

The previous prime is 810465827. The next prime is 810465857. The reversal of 810465841 is 148564018.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734410000 + 76055841 = 27100^2 + 8721^2 .

It is a cyclic number.

It is not a de Polignac number, because 810465841 - 2⁵ = 810465809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 810465841.

It is not a weakly prime, because it can be changed into another prime (810465941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405232920 + 405232921.

It is an arithmetic number, because the mean of its divisors is an integer number (405232921).

Almost surely, 2^810465841 is an apocalyptic number.

It is an amenable number.

810465841 is a deficient number, since it is larger than the sum of its proper divisors (1).

810465841 is an equidigital number, since it uses as much as digits as its factorization.

810465841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 810465841 is about 28468.6817573276. The cubic root of 810465841 is about 932.3484183169.

The spelling of 810465841 in words is "eight hundred ten million, four hundred sixty-five thousand, eight hundred forty-one".