98646857 has 2 divisors, whose sum is σ = 98646858. Its totient is φ = 98646856.

The previous prime is 98646827. The next prime is 98646881. The reversal of 98646857 is 75864689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86508601 + 12138256 = 9301^2 + 3484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98646857 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 98646799 and 98646808.

It is not a weakly prime, because it can be changed into another prime (98646827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49323428 + 49323429.

It is an arithmetic number, because the mean of its divisors is an integer number (49323429).

Almost surely, 2^98646857 is an apocalyptic number.

It is an amenable number.

98646857 is a deficient number, since it is larger than the sum of its proper divisors (1).

98646857 is an equidigital number, since it uses as much as digits as its factorization.

98646857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The square root of 98646857 is about 9932.1124137819. The cubic root of 98646857 is about 462.0557908799.

The spelling of 98646857 in words is "ninety-eight million, six hundred forty-six thousand, eight hundred fifty-seven".