68198470 has 8 divisors (see below), whose sum is σ = 122757264. Its totient is φ = 27279384.

The previous prime is 68198461. The next prime is 68198477. The reversal of 68198470 is 7489186.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68198477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409914 + ... + 3409933.

It is an arithmetic number, because the mean of its divisors is an integer number (15344658).

Almost surely, 2^68198470 is an apocalyptic number.

68198470 is a deficient number, since it is larger than the sum of its proper divisors (54558794).

68198470 is a wasteful number, since it uses less digits than its factorization.

68198470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819854.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 68198470 is about 8258.2364945550. The cubic root of 68198470 is about 408.5622255041.

The spelling of 68198470 in words is "sixty-eight million, one hundred ninety-eight thousand, four hundred seventy".