8509714949 has 2 divisors, whose sum is σ = 8509714950. Its totient is φ = 8509714948.

The previous prime is 8509714907. The next prime is 8509714987. The reversal of 8509714949 is 9494179058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5832376900 + 2677338049 = 76370^2 + 51743^2 .

It is a cyclic number.

It is not a de Polignac number, because 8509714949 - 2¹⁶ = 8509649413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8509714894 and 8509714903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8509714349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4254857474 + 4254857475.

It is an arithmetic number, because the mean of its divisors is an integer number (4254857475).

Almost surely, 2^8509714949 is an apocalyptic number.

It is an amenable number.

8509714949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8509714949 is an equidigital number, since it uses as much as digits as its factorization.

8509714949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The square root of 8509714949 is about 92248.1162355091. The cubic root of 8509714949 is about 2041.6047661307.

The spelling of 8509714949 in words is "eight billion, five hundred nine million, seven hundred fourteen thousand, nine hundred forty-nine".