98216641 has 2 divisors, whose sum is σ = 98216642. Its totient is φ = 98216640.

The previous prime is 98216621. The next prime is 98216659. The reversal of 98216641 is 14661289.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88736400 + 9480241 = 9420^2 + 3079^2 .

It is a cyclic number.

It is not a de Polignac number, because 98216641 - 2²⁵ = 64662209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98216641.

It is not a weakly prime, because it can be changed into another prime (98216621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49108320 + 49108321.

It is an arithmetic number, because the mean of its divisors is an integer number (49108321).

Almost surely, 2^98216641 is an apocalyptic number.

It is an amenable number.

98216641 is a deficient number, since it is larger than the sum of its proper divisors (1).

98216641 is an equidigital number, since it uses as much as digits as its factorization.

98216641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 98216641 is about 9910.4309189863. The cubic root of 98216641 is about 461.3831103060.

The spelling of 98216641 in words is "ninety-eight million, two hundred sixteen thousand, six hundred forty-one".