7880797 has 2 divisors, whose sum is σ = 7880798. Its totient is φ = 7880796.

The previous prime is 7880791. The next prime is 7880827. The reversal of 7880797 is 7970887.

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., 6937956 + 942841 = 2634^2 + 971^2 .

It is an emirp because it is prime and its reverse (7970887) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7880797 is a prime.

It is a super-2 number, since 2×7880797² = 124213922710418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7880791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3940398 + 3940399.

It is an arithmetic number, because the mean of its divisors is an integer number (3940399).

Almost surely, 2^7880797 is an apocalyptic number.

It is an amenable number.

7880797 is a deficient number, since it is larger than the sum of its proper divisors (1).

7880797 is an equidigital number, since it uses as much as digits as its factorization.

7880797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 46.

The square root of 7880797 is about 2807.2757256814. The cubic root of 7880797 is about 199.0016666106.

The spelling of 7880797 in words is "seven million, eight hundred eighty thousand, seven hundred ninety-seven".