799771481 has 2 divisors, whose sum is σ = 799771482. Its totient is φ = 799771480.

The previous prime is 799771471. The next prime is 799771493. The reversal of 799771481 is 184177997.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 777294400 + 22477081 = 27880^2 + 4741^2 .

It is a cyclic number.

It is not a de Polignac number, because 799771481 - 2⁶ = 799771417 is a prime.

It is a super-2 number, since 2×799771481² = 1279268843641866722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (799771421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399885740 + 399885741.

It is an arithmetic number, because the mean of its divisors is an integer number (399885741).

Almost surely, 2^799771481 is an apocalyptic number.

It is an amenable number.

799771481 is a deficient number, since it is larger than the sum of its proper divisors (1).

799771481 is an equidigital number, since it uses as much as digits as its factorization.

799771481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 53.

The square root of 799771481 is about 28280.2312755748. The cubic root of 799771481 is about 928.2293673684.

The spelling of 799771481 in words is "seven hundred ninety-nine million, seven hundred seventy-one thousand, four hundred eighty-one".