7765000247 has 2 divisors, whose sum is σ = 7765000248. Its totient is φ = 7765000246.

The previous prime is 7765000219. The next prime is 7765000259. The reversal of 7765000247 is 7420005677.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7765000247 - 2¹⁸ = 7764738103 is a prime.

It is a super-2 number, since 2×7765000247² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7765000247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7765000277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3882500123 + 3882500124.

It is an arithmetic number, because the mean of its divisors is an integer number (3882500124).

Almost surely, 2^7765000247 is an apocalyptic number.

7765000247 is a deficient number, since it is larger than the sum of its proper divisors (1).

7765000247 is an equidigital number, since it uses as much as digits as its factorization.

7765000247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 7765000247 is about 88119.2388017509. The cubic root of 7765000247 is about 1980.2217422475.

The spelling of 7765000247 in words is "seven billion, seven hundred sixty-five million, two hundred forty-seven", and thus it is an aban number.