7648696997 has 2 divisors, whose sum is σ = 7648696998. Its totient is φ = 7648696996.

The previous prime is 7648696987. The next prime is 7648697009. The reversal of 7648696997 is 7996968467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4413476356 + 3235220641 = 66434^2 + 56879^2 .

It is a cyclic number.

It is not a de Polignac number, because 7648696997 - 2¹² = 7648692901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7648696997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7648696907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3824348498 + 3824348499.

It is an arithmetic number, because the mean of its divisors is an integer number (3824348499).

Almost surely, 2^7648696997 is an apocalyptic number.

It is an amenable number.

7648696997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7648696997 is an equidigital number, since it uses as much as digits as its factorization.

7648696997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246903552, while the sum is 71.

The square root of 7648696997 is about 87456.8293331058. The cubic root of 7648696997 is about 1970.2854591623.

The spelling of 7648696997 in words is "seven billion, six hundred forty-eight million, six hundred ninety-six thousand, nine hundred ninety-seven".