68699707 has 2 divisors, whose sum is σ = 68699708. Its totient is φ = 68699706.

The previous prime is 68699693. The next prime is 68699747. The reversal of 68699707 is 70799686.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68699707 is a prime.

It is not a weakly prime, because it can be changed into another prime (68699747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34349853 + 34349854.

It is an arithmetic number, because the mean of its divisors is an integer number (34349854).

Almost surely, 2^68699707 is an apocalyptic number.

68699707 is a deficient number, since it is larger than the sum of its proper divisors (1).

68699707 is an equidigital number, since it uses as much as digits as its factorization.

68699707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 68699707 is about 8288.5286390288. The cubic root of 68699707 is about 409.5607172963.

The spelling of 68699707 in words is "sixty-eight million, six hundred ninety-nine thousand, seven hundred seven".