68735399 has 2 divisors, whose sum is σ = 68735400. Its totient is φ = 68735398.

The previous prime is 68735377. The next prime is 68735441. The reversal of 68735399 is 99353786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68735399 - 2⁸ = 68735143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68735309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34367699 + 34367700.

It is an arithmetic number, because the mean of its divisors is an integer number (34367700).

Almost surely, 2^68735399 is an apocalyptic number.

68735399 is a deficient number, since it is larger than the sum of its proper divisors (1).

68735399 is an equidigital number, since it uses as much as digits as its factorization.

68735399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 50.

The square root of 68735399 is about 8290.6814557068. The cubic root of 68735399 is about 409.6316322534.

The spelling of 68735399 in words is "sixty-eight million, seven hundred thirty-five thousand, three hundred ninety-nine".