770000797 has 2 divisors, whose sum is σ = 770000798. Its totient is φ = 770000796.

The previous prime is 770000789. The next prime is 770000809. The reversal of 770000797 is 797000077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664917796 + 105083001 = 25786^2 + 10251^2 .

It is an emirp because it is prime and its reverse (797000077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 770000797 - 2³ = 770000789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770004797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385000398 + 385000399.

It is an arithmetic number, because the mean of its divisors is an integer number (385000399).

Almost surely, 2^770000797 is an apocalyptic number.

It is an amenable number.

770000797 is a deficient number, since it is larger than the sum of its proper divisors (1).

770000797 is an equidigital number, since it uses as much as digits as its factorization.

770000797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21609, while the sum is 37.

The square root of 770000797 is about 27748.8882119627. Note that the first 3 decimals coincide. The cubic root of 770000797 is about 916.5659616679.

The spelling of 770000797 in words is "seven hundred seventy million, seven hundred ninety-seven", and thus it is an aban number.