8714632781 has 2 divisors, whose sum is σ = 8714632782. Its totient is φ = 8714632780.

The previous prime is 8714632757. The next prime is 8714632799. The reversal of 8714632781 is 1872364178.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8438075881 + 276556900 = 91859^2 + 16630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8714632781 is a prime.

It is a super-2 number, since 2×8714632781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8714632741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4357316390 + 4357316391.

It is an arithmetic number, because the mean of its divisors is an integer number (4357316391).

Almost surely, 2^8714632781 is an apocalyptic number.

It is an amenable number.

8714632781 is a deficient number, since it is larger than the sum of its proper divisors (1).

8714632781 is an equidigital number, since it uses as much as digits as its factorization.

8714632781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 8714632781 is about 93352.1975156450. The cubic root of 8714632781 is about 2057.8625503704.

The spelling of 8714632781 in words is "eight billion, seven hundred fourteen million, six hundred thirty-two thousand, seven hundred eighty-one".