2077770797 has 2 divisors, whose sum is σ = 2077770798. Its totient is φ = 2077770796.

The previous prime is 2077770731. The next prime is 2077770829. The reversal of 2077770797 is 7970777702.

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., 2076260356 + 1510441 = 45566^2 + 1229^2 .

It is a cyclic number.

It is not a de Polignac number, because 2077770797 - 2²⁴ = 2060993581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2077770697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038885398 + 1038885399.

It is an arithmetic number, because the mean of its divisors is an integer number (1038885399).

Almost surely, 2^2077770797 is an apocalyptic number.

It is an amenable number.

2077770797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2077770797 is an equidigital number, since it uses as much as digits as its factorization.

2077770797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2117682, while the sum is 53.

The square root of 2077770797 is about 45582.5711977725. The cubic root of 2077770797 is about 1276.0446744005.

The spelling of 2077770797 in words is "two billion, seventy-seven million, seven hundred seventy thousand, seven hundred ninety-seven".