68853899 has 2 divisors, whose sum is σ = 68853900. Its totient is φ = 68853898.

The previous prime is 68853887. The next prime is 68853907. The reversal of 68853899 is 99835886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68853899 - 2⁸ = 68853643 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68853809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34426949 + 34426950.

It is an arithmetic number, because the mean of its divisors is an integer number (34426950).

Almost surely, 2^68853899 is an apocalyptic number.

68853899 is a deficient number, since it is larger than the sum of its proper divisors (1).

68853899 is an equidigital number, since it uses as much as digits as its factorization.

68853899 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 68853899 is about 8297.8249559749. The cubic root of 68853899 is about 409.8668990915.

The spelling of 68853899 in words is "sixty-eight million, eight hundred fifty-three thousand, eight hundred ninety-nine".