68607706 has 4 divisors (see below), whose sum is σ = 102911562. Its totient is φ = 34303852.

The previous prime is 68607701. The next prime is 68607751. The reversal of 68607706 is 60770686.

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

It can be written as a sum of positive squares in only one way, i.e., 67486225 + 1121481 = 8215^2 + 1059^2 .

It is not an unprimeable number, because it can be changed into a prime (68607701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17151925 + ... + 17151928.

Almost surely, 2^68607706 is an apocalyptic number.

68607706 is a deficient number, since it is larger than the sum of its proper divisors (34303856).

68607706 is a wasteful number, since it uses less digits than its factorization.

68607706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34303855.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 68607706 is about 8282.9768803251. The cubic root of 68607706 is about 409.3778109940.

The spelling of 68607706 in words is "sixty-eight million, six hundred seven thousand, seven hundred six".