808261313 has 2 divisors, whose sum is σ = 808261314. Its totient is φ = 808261312.

The previous prime is 808261283. The next prime is 808261319. The reversal of 808261313 is 313162808.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 807866929 + 394384 = 28423^2 + 628^2 .

It is a cyclic number.

It is not a de Polignac number, because 808261313 - 2¹⁸ = 807999169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 808261313.

It is not a weakly prime, because it can be changed into another prime (808261319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404130656 + 404130657.

It is an arithmetic number, because the mean of its divisors is an integer number (404130657).

Almost surely, 2^808261313 is an apocalyptic number.

It is an amenable number.

808261313 is a deficient number, since it is larger than the sum of its proper divisors (1).

808261313 is an equidigital number, since it uses as much as digits as its factorization.

808261313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 808261313 is about 28429.9369151604. The cubic root of 808261313 is about 931.5022980921.

The spelling of 808261313 in words is "eight hundred eight million, two hundred sixty-one thousand, three hundred thirteen".