808413961 has 2 divisors, whose sum is σ = 808413962. Its totient is φ = 808413960.

The previous prime is 808413917. The next prime is 808413989. The reversal of 808413961 is 169314808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 807639561 + 774400 = 28419^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 808413961 - 2¹¹ = 808411913 is a prime.

It is not a weakly prime, because it can be changed into another prime (808413901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404206980 + 404206981.

It is an arithmetic number, because the mean of its divisors is an integer number (404206981).

Almost surely, 2^808413961 is an apocalyptic number.

It is an amenable number.

808413961 is a deficient number, since it is larger than the sum of its proper divisors (1).

808413961 is an equidigital number, since it uses as much as digits as its factorization.

808413961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 808413961 is about 28432.6214232877. The cubic root of 808413961 is about 931.5609354866.

The spelling of 808413961 in words is "eight hundred eight million, four hundred thirteen thousand, nine hundred sixty-one".