2805077797 has 2 divisors, whose sum is σ = 2805077798. Its totient is φ = 2805077796.

The previous prime is 2805077789. The next prime is 2805077813. The reversal of 2805077797 is 7977705082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1518349156 + 1286728641 = 38966^2 + 35871^2 .

It is a cyclic number.

It is not a de Polignac number, because 2805077797 - 2³ = 2805077789 is a prime.

It is a super-2 number, since 2×2805077797² = 15736922894444746418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2805077767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402538898 + 1402538899.

It is an arithmetic number, because the mean of its divisors is an integer number (1402538899).

Almost surely, 2^2805077797 is an apocalyptic number.

It is an amenable number.

2805077797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805077797 is an equidigital number, since it uses as much as digits as its factorization.

2805077797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728720, while the sum is 52.

The square root of 2805077797 is about 52962.9851594489. The cubic root of 2805077797 is about 1410.3112498001.

The spelling of 2805077797 in words is "two billion, eight hundred five million, seventy-seven thousand, seven hundred ninety-seven".