68670208 has 72 divisors (see below), whose sum is σ = 150111360. Its totient is φ = 31211520.

The previous prime is 68670193. The next prime is 68670209. The reversal of 68670208 is 80207686.

It is not an unprimeable number, because it can be changed into a prime (68670209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134658 + ... + 135166.

It is an arithmetic number, because the mean of its divisors is an integer number (2084880).

Almost surely, 2^68670208 is an apocalyptic number.

68670208 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68670208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75055680).

68670208 is an abundant number, since it is smaller than the sum of its proper divisors (81441152).

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

68670208 is a wasteful number, since it uses less digits than its factorization.

68670208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 68670208 is about 8286.7489403264. The cubic root of 68670208 is about 409.5020884133.

The spelling of 68670208 in words is "sixty-eight million, six hundred seventy thousand, two hundred eight".