68522667 has 4 divisors (see below), whose sum is σ = 91363560. Its totient is φ = 45681776.

The previous prime is 68522651. The next prime is 68522677. The reversal of 68522667 is 76622586.

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 68522667 - 2⁴ = 68522651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68522677) 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, 11420442 + ... + 11420447.

It is an arithmetic number, because the mean of its divisors is an integer number (22840890).

Almost surely, 2^68522667 is an apocalyptic number.

68522667 is a deficient number, since it is larger than the sum of its proper divisors (22840893).

68522667 is a wasteful number, since it uses less digits than its factorization.

68522667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22840892.

The product of its digits is 241920, while the sum is 42.

The square root of 68522667 is about 8277.8419289088. The cubic root of 68522667 is about 409.2086002976.

The spelling of 68522667 in words is "sixty-eight million, five hundred twenty-two thousand, six hundred sixty-seven".