68304398 has 8 divisors (see below), whose sum is σ = 102689208. Its totient is φ = 34074664.

The previous prime is 68304371. The next prime is 68304407. The reversal of 68304398 is 89340386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68304398² = 9330981572284808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37661 + ... + 39432.

It is an arithmetic number, because the mean of its divisors is an integer number (12836151).

Almost surely, 2^68304398 is an apocalyptic number.

68304398 is a deficient number, since it is larger than the sum of its proper divisors (34384810).

68304398 is a wasteful number, since it uses less digits than its factorization.

68304398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77538.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 68304398 is about 8264.6474818954. The cubic root of 68304398 is about 408.7736466289.

The spelling of 68304398 in words is "sixty-eight million, three hundred four thousand, three hundred ninety-eight".