68386533 has 4 divisors (see below), whose sum is σ = 91182048. Its totient is φ = 45591020.

The previous prime is 68386523. The next prime is 68386543. The reversal of 68386533 is 33568386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (68386523) and next prime (68386543).

It is a cyclic number.

It is not a de Polignac number, because 68386533 - 2⁴ = 68386517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68386523) 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, 11397753 + ... + 11397758.

It is an arithmetic number, because the mean of its divisors is an integer number (22795512).

Almost surely, 2^68386533 is an apocalyptic number.

It is an amenable number.

68386533 is a deficient number, since it is larger than the sum of its proper divisors (22795515).

68386533 is a wasteful number, since it uses less digits than its factorization.

68386533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22795514.

The product of its digits is 311040, while the sum is 42.

The square root of 68386533 is about 8269.6150454541. The cubic root of 68386533 is about 408.9374290294.

The spelling of 68386533 in words is "sixty-eight million, three hundred eighty-six thousand, five hundred thirty-three".