68435707 has 4 divisors (see below), whose sum is σ = 68490576. Its totient is φ = 68380840.

The previous prime is 68435699. The next prime is 68435723. The reversal of 68435707 is 70753486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68435707 - 2³ = 68435699 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68435707.

It is not an unprimeable number, because it can be changed into a prime (68435797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25519 + ... + 28072.

It is an arithmetic number, because the mean of its divisors is an integer number (17122644).

Almost surely, 2^68435707 is an apocalyptic number.

68435707 is a deficient number, since it is larger than the sum of its proper divisors (54869).

68435707 is a wasteful number, since it uses less digits than its factorization.

68435707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54868.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 68435707 is about 8272.5876846365. The cubic root of 68435707 is about 409.0354223540.

The spelling of 68435707 in words is "sixty-eight million, four hundred thirty-five thousand, seven hundred seven".