8229249997 has 2 divisors, whose sum is σ = 8229249998. Its totient is φ = 8229249996.

The previous prime is 8229249991. The next prime is 8229250091. The reversal of 8229249997 is 7999429228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8185544676 + 43705321 = 90474^2 + 6611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8229249997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8229249991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4114624998 + 4114624999.

It is an arithmetic number, because the mean of its divisors is an integer number (4114624999).

Almost surely, 2^8229249997 is an apocalyptic number.

It is an amenable number.

8229249997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8229249997 is an equidigital number, since it uses as much as digits as its factorization.

8229249997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11757312, while the sum is 61.

The square root of 8229249997 is about 90715.2137020026. The cubic root of 8229249997 is about 2018.9245326492.

The spelling of 8229249997 in words is "eight billion, two hundred twenty-nine million, two hundred forty-nine thousand, nine hundred ninety-seven".