98661271 has 2 divisors, whose sum is σ = 98661272. Its totient is φ = 98661270.

The previous prime is 98661263. The next prime is 98661289. The reversal of 98661271 is 17216689.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98661271 - 2³ = 98661263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98661071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49330635 + 49330636.

It is an arithmetic number, because the mean of its divisors is an integer number (49330636).

Almost surely, 2^98661271 is an apocalyptic number.

98661271 is a deficient number, since it is larger than the sum of its proper divisors (1).

98661271 is an equidigital number, since it uses as much as digits as its factorization.

98661271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 98661271 is about 9932.8380133776. The cubic root of 98661271 is about 462.0782945461.

The spelling of 98661271 in words is "ninety-eight million, six hundred sixty-one thousand, two hundred seventy-one".