68564397 has 8 divisors (see below), whose sum is σ = 99730080. Its totient is φ = 41554160.

The previous prime is 68564393. The next prime is 68564401. The reversal of 68564397 is 79346586.

It is an interprime number because it is at equal distance from previous prime (68564393) and next prime (68564401).

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 68564397 - 2² = 68564393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68564393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038822 + ... + 1038887.

It is an arithmetic number, because the mean of its divisors is an integer number (12466260).

Almost surely, 2^68564397 is an apocalyptic number.

It is an amenable number.

68564397 is a deficient number, since it is larger than the sum of its proper divisors (31165683).

68564397 is a wasteful number, since it uses less digits than its factorization.

68564397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077723.

The product of its digits is 1088640, while the sum is 48.

The square root of 68564397 is about 8280.3621297622. The cubic root of 68564397 is about 409.2916521808.

It can be divided in two parts, 68 and 564397, that added together give a palindrome (564465).

The spelling of 68564397 in words is "sixty-eight million, five hundred sixty-four thousand, three hundred ninety-seven".