8625739897 has 2 divisors, whose sum is σ = 8625739898. Its totient is φ = 8625739896.

The previous prime is 8625739873. The next prime is 8625739901. The reversal of 8625739897 is 7989375268.

8625739897 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7546223161 + 1079516736 = 86869^2 + 32856^2 .

It is a cyclic number.

It is not a de Polignac number, because 8625739897 - 2¹¹ = 8625737849 is a prime.

It is not a weakly prime, because it can be changed into another prime (8625739817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4312869948 + 4312869949.

It is an arithmetic number, because the mean of its divisors is an integer number (4312869949).

Almost surely, 2^8625739897 is an apocalyptic number.

It is an amenable number.

8625739897 is a deficient number, since it is larger than the sum of its proper divisors (1).

8625739897 is an equidigital number, since it uses as much as digits as its factorization.

8625739897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 64.

The square root of 8625739897 is about 92874.8614911484. The cubic root of 8625739897 is about 2050.8416054222.

The spelling of 8625739897 in words is "eight billion, six hundred twenty-five million, seven hundred thirty-nine thousand, eight hundred ninety-seven".