7768997 has 2 divisors, whose sum is σ = 7768998. Its totient is φ = 7768996.

The previous prime is 7768987. The next prime is 7769029. The reversal of 7768997 is 7998677.

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., 4268356 + 3500641 = 2066^2 + 1871^2 .

It is a cyclic number.

It is not a de Polignac number, because 7768997 - 2¹⁰ = 7767973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7768907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3884498 + 3884499.

It is an arithmetic number, because the mean of its divisors is an integer number (3884499).

Almost surely, 2^7768997 is an apocalyptic number.

It is an amenable number.

7768997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7768997 is an equidigital number, since it uses as much as digits as its factorization.

7768997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 53.

The square root of 7768997 is about 2787.2920550240. The cubic root of 7768997 is about 198.0561433144.

The spelling of 7768997 in words is "seven million, seven hundred sixty-eight thousand, nine hundred ninety-seven".