68394850 has 24 divisors (see below), whose sum is σ = 127991808. Its totient is φ = 27190800.

The previous prime is 68394817. The next prime is 68394881. The reversal of 68394850 is 5849386.

68394850 = 90² + 91² + ... + 590².

It is a junction number, because it is equal to n+sod(n) for n = 68394797 and 68394806.

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 11 ways as a sum of consecutive naturals, for example, 4255 + ... + 12445.

It is an arithmetic number, because the mean of its divisors is an integer number (5332992).

Almost surely, 2^68394850 is an apocalyptic number.

68394850 is a deficient number, since it is larger than the sum of its proper divisors (59596958).

68394850 is a wasteful number, since it uses less digits than its factorization.

68394850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370 (or 8365 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 68394850 is about 8270.1178951693. The cubic root of 68394850 is about 408.9540063416.

The spelling of 68394850 in words is "sixty-eight million, three hundred ninety-four thousand, eight hundred fifty".