68498239 has 2 divisors, whose sum is σ = 68498240. Its totient is φ = 68498238.

The previous prime is 68498237. The next prime is 68498257. The reversal of 68498239 is 93289486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68498239 - 2¹ = 68498237 is a prime.

It is a super-2 number, since 2×68498239² = 9384017492202242, which contains 22 as substring.

Together with 68498237, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68498192 and 68498201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68498237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34249119 + 34249120.

It is an arithmetic number, because the mean of its divisors is an integer number (34249120).

Almost surely, 2^68498239 is an apocalyptic number.

68498239 is a deficient number, since it is larger than the sum of its proper divisors (1).

68498239 is an equidigital number, since it uses as much as digits as its factorization.

68498239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 49.

The square root of 68498239 is about 8276.3662920390. The cubic root of 68498239 is about 409.1599675545.

The spelling of 68498239 in words is "sixty-eight million, four hundred ninety-eight thousand, two hundred thirty-nine".