68363646 has 32 divisors (see below), whose sum is σ = 150843168. Its totient is φ = 20520960.

The previous prime is 68363629. The next prime is 68363671. The reversal of 68363646 is 64636386.

It is a junction number, because it is equal to n+sod(n) for n = 68363598 and 68363607.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7491 + ... + 13886.

It is an arithmetic number, because the mean of its divisors is an integer number (4713849).

Almost surely, 2^68363646 is an apocalyptic number.

68363646 is an abundant number, since it is smaller than the sum of its proper divisors (82479522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68363646 is a wasteful number, since it uses less digits than its factorization.

68363646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21436.

The product of its digits is 373248, while the sum is 42.

The square root of 68363646 is about 8268.2311288449. The cubic root of 68363646 is about 408.8918040853.

The spelling of 68363646 in words is "sixty-eight million, three hundred sixty-three thousand, six hundred forty-six".