68821336 has 16 divisors (see below), whose sum is σ = 134650800. Its totient is φ = 32914464.

The previous prime is 68821327. The next prime is 68821339. The reversal of 68821336 is 63312886.

It is a junction number, because it is equal to n+sod(n) for n = 68821295 and 68821304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68821339) 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, 186831 + ... + 187198.

It is an arithmetic number, because the mean of its divisors is an integer number (8415675).

Almost surely, 2^68821336 is an apocalyptic number.

It is an amenable number.

68821336 is a deficient number, since it is larger than the sum of its proper divisors (65829464).

68821336 is a wasteful number, since it uses less digits than its factorization.

68821336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374058 (or 374054 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 68821336 is about 8295.8625832399. The cubic root of 68821336 is about 409.8022762667.

The spelling of 68821336 in words is "sixty-eight million, eight hundred twenty-one thousand, three hundred thirty-six".