98885639 has 2 divisors, whose sum is σ = 98885640. Its totient is φ = 98885638.

The previous prime is 98885627. The next prime is 98885653. The reversal of 98885639 is 93658889.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98885639 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98885609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49442819 + 49442820.

It is an arithmetic number, because the mean of its divisors is an integer number (49442820).

Almost surely, 2^98885639 is an apocalyptic number.

98885639 is a deficient number, since it is larger than the sum of its proper divisors (1).

98885639 is an equidigital number, since it uses as much as digits as its factorization.

98885639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 56.

The square root of 98885639 is about 9944.1258539904. The cubic root of 98885639 is about 462.4283038608.

The spelling of 98885639 in words is "ninety-eight million, eight hundred eighty-five thousand, six hundred thirty-nine".