68647398 has 16 divisors (see below), whose sum is σ = 138008496. Its totient is φ = 22763520.

The previous prime is 68647363. The next prime is 68647417. The reversal of 68647398 is 89374686.

It is a self number, because there is not a number n which added to its sum of digits gives 68647398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28483 + ... + 30798.

It is an arithmetic number, because the mean of its divisors is an integer number (8625531).

Almost surely, 2^68647398 is an apocalyptic number.

68647398 is an abundant number, since it is smaller than the sum of its proper divisors (69361098).

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

68647398 is a wasteful number, since it uses less digits than its factorization.

68647398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59479.

The product of its digits is 1741824, while the sum is 51.

The square root of 68647398 is about 8285.3725323609. The cubic root of 68647398 is about 409.4567423196.

It can be divided in two parts, 686 and 47398, that added together give a palindrome (48084).

The spelling of 68647398 in words is "sixty-eight million, six hundred forty-seven thousand, three hundred ninety-eight".