98619539 has 2 divisors, whose sum is σ = 98619540. Its totient is φ = 98619538.

The previous prime is 98619529. The next prime is 98619553. The reversal of 98619539 is 93591689.

It is a weak prime.

It is an emirp because it is prime and its reverse (93591689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98619539 - 2⁴ = 98619523 is a prime.

It is not a weakly prime, because it can be changed into another prime (98619509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49309769 + 49309770.

It is an arithmetic number, because the mean of its divisors is an integer number (49309770).

Almost surely, 2^98619539 is an apocalyptic number.

98619539 is a deficient number, since it is larger than the sum of its proper divisors (1).

98619539 is an equidigital number, since it uses as much as digits as its factorization.

98619539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 50.

The square root of 98619539 is about 9930.7370824124. The cubic root of 98619539 is about 462.0131350001.

The spelling of 98619539 in words is "ninety-eight million, six hundred nineteen thousand, five hundred thirty-nine".