98654639 has 2 divisors, whose sum is σ = 98654640. Its totient is φ = 98654638.

The previous prime is 98654623. The next prime is 98654641. The reversal of 98654639 is 93645689.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98654639 - 2⁴ = 98654623 is a prime.

Together with 98654641, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98651639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49327319 + 49327320.

It is an arithmetic number, because the mean of its divisors is an integer number (49327320).

Almost surely, 2^98654639 is an apocalyptic number.

98654639 is a deficient number, since it is larger than the sum of its proper divisors (1).

98654639 is an equidigital number, since it uses as much as digits as its factorization.

98654639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 50.

The square root of 98654639 is about 9932.5041656170. The cubic root of 98654639 is about 462.0679406964.

The spelling of 98654639 in words is "ninety-eight million, six hundred fifty-four thousand, six hundred thirty-nine".