68578963 has 2 divisors, whose sum is σ = 68578964. Its totient is φ = 68578962.

The previous prime is 68578949. The next prime is 68578981. The reversal of 68578963 is 36987586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68578963 - 2⁵ = 68578931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68578963.

It is not a weakly prime, because it can be changed into another prime (68578063) 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 as a sum of consecutive naturals, namely, 34289481 + 34289482.

It is an arithmetic number, because the mean of its divisors is an integer number (34289482).

Almost surely, 2^68578963 is an apocalyptic number.

68578963 is a deficient number, since it is larger than the sum of its proper divisors (1).

68578963 is an equidigital number, since it uses as much as digits as its factorization.

68578963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The square root of 68578963 is about 8281.2416339580. The cubic root of 68578963 is about 409.3206337919.

The spelling of 68578963 in words is "sixty-eight million, five hundred seventy-eight thousand, nine hundred sixty-three".