8497221463 has 2 divisors, whose sum is σ = 8497221464. Its totient is φ = 8497221462.

The previous prime is 8497221457. The next prime is 8497221521. The reversal of 8497221463 is 3641227948.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8497221463 - 2¹⁷ = 8497090391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8497221263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4248610731 + 4248610732.

It is an arithmetic number, because the mean of its divisors is an integer number (4248610732).

Almost surely, 2^8497221463 is an apocalyptic number.

8497221463 is a deficient number, since it is larger than the sum of its proper divisors (1).

8497221463 is an equidigital number, since it uses as much as digits as its factorization.

8497221463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 8497221463 is about 92180.3746086986. The cubic root of 8497221463 is about 2040.6051535922.

The spelling of 8497221463 in words is "eight billion, four hundred ninety-seven million, two hundred twenty-one thousand, four hundred sixty-three".