98660647 has 2 divisors, whose sum is σ = 98660648. Its totient is φ = 98660646.

The previous prime is 98660623. The next prime is 98660663. The reversal of 98660647 is 74606689.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98660647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98660597 and 98660606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98660147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49330323 + 49330324.

It is an arithmetic number, because the mean of its divisors is an integer number (49330324).

Almost surely, 2^98660647 is an apocalyptic number.

98660647 is a deficient number, since it is larger than the sum of its proper divisors (1).

98660647 is an equidigital number, since it uses as much as digits as its factorization.

98660647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 98660647 is about 9932.8066023657. The cubic root of 98660647 is about 462.0773203798.

The spelling of 98660647 in words is "ninety-eight million, six hundred sixty thousand, six hundred forty-seven".