98491 has 2 divisors, whose sum is σ = 98492. Its totient is φ = 98490.

The previous prime is 98479. The next prime is 98507. The reversal of 98491 is 19489.

It is a weak prime.

It is an emirp because it is prime and its reverse (19489) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98491 - 2⁵ = 98459 is a prime.

It is a Chen prime.

98491 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (98411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49245 + 49246.

It is an arithmetic number, because the mean of its divisors is an integer number (49246).

2⁹⁸⁴⁹¹ is an apocalyptic number.

98491 is a deficient number, since it is larger than the sum of its proper divisors (1).

98491 is an equidigital number, since it uses as much as digits as its factorization.

98491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 31.

The square root of 98491 is about 313.8327580097. The cubic root of 98491 is about 46.1812321088.

The spelling of 98491 in words is "ninety-eight thousand, four hundred ninety-one".