7865984701 has 2 divisors, whose sum is σ = 7865984702. Its totient is φ = 7865984700.

The previous prime is 7865984663. The next prime is 7865984773. The reversal of 7865984701 is 1074895687.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6569264601 + 1296720100 = 81051^2 + 36010^2 .

It is a cyclic number.

It is not a de Polignac number, because 7865984701 - 2⁷ = 7865984573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7865984501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932992350 + 3932992351.

It is an arithmetic number, because the mean of its divisors is an integer number (3932992351).

Almost surely, 2^7865984701 is an apocalyptic number.

It is an amenable number.

7865984701 is a deficient number, since it is larger than the sum of its proper divisors (1).

7865984701 is an equidigital number, since it uses as much as digits as its factorization.

7865984701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The square root of 7865984701 is about 88690.3867451259. The cubic root of 7865984701 is about 1988.7691100205.

The spelling of 7865984701 in words is "seven billion, eight hundred sixty-five million, nine hundred eighty-four thousand, seven hundred one".