68656967 has 4 divisors (see below), whose sum is σ = 68705736. Its totient is φ = 68608200.

The previous prime is 68656957. The next prime is 68656993. The reversal of 68656967 is 76965686.

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 68656967 - 2²⁶ = 1548103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68656927) 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, 22208 + ... + 25109.

It is an arithmetic number, because the mean of its divisors is an integer number (17176434).

Almost surely, 2^68656967 is an apocalyptic number.

68656967 is a deficient number, since it is larger than the sum of its proper divisors (48769).

68656967 is a wasteful number, since it uses less digits than its factorization.

68656967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48768.

The product of its digits is 3265920, while the sum is 53.

The square root of 68656967 is about 8285.9499757119. The cubic root of 68656967 is about 409.4757666363.

The spelling of 68656967 in words is "sixty-eight million, six hundred fifty-six thousand, nine hundred sixty-seven".