68634065 has 8 divisors (see below), whose sum is σ = 82441320. Its totient is φ = 54853632.

The previous prime is 68634011. The next prime is 68634073. The reversal of 68634065 is 56043686.

It can be written as a sum of positive squares in 4 ways, for example, as 2715904 + 65918161 = 1648^2 + 8119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68634065 - 2⁸ = 68633809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560 + ... + 11729.

It is an arithmetic number, because the mean of its divisors is an integer number (10305165).

Almost surely, 2^68634065 is an apocalyptic number.

It is an amenable number.

68634065 is a deficient number, since it is larger than the sum of its proper divisors (13807255).

68634065 is a wasteful number, since it uses less digits than its factorization.

68634065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13411.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 68634065 is about 8284.5678825151. The cubic root of 68634065 is about 409.4302317725.

The spelling of 68634065 in words is "sixty-eight million, six hundred thirty-four thousand, sixty-five".