68654899 has 2 divisors, whose sum is σ = 68654900. Its totient is φ = 68654898.

The previous prime is 68654897. The next prime is 68654903. The reversal of 68654899 is 99845686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68654899 - 2¹ = 68654897 is a prime.

Together with 68654897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68654897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34327449 + 34327450.

It is an arithmetic number, because the mean of its divisors is an integer number (34327450).

Almost surely, 2^68654899 is an apocalyptic number.

68654899 is a deficient number, since it is larger than the sum of its proper divisors (1).

68654899 is an equidigital number, since it uses as much as digits as its factorization.

68654899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 55.

The square root of 68654899 is about 8285.8251852184. The cubic root of 68654899 is about 409.4716553547.

The spelling of 68654899 in words is "sixty-eight million, six hundred fifty-four thousand, eight hundred ninety-nine".