68928906 has 8 divisors (see below), whose sum is σ = 137857824. Its totient is φ = 22976300.

The previous prime is 68928901. The next prime is 68928917. The reversal of 68928906 is 60982986.

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

68928906 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (68928901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5744070 + ... + 5744081.

It is an arithmetic number, because the mean of its divisors is an integer number (17232228).

Almost surely, 2^68928906 is an apocalyptic number.

68928906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68928906 is a wasteful number, since it uses less digits than its factorization.

68928906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11488156.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 68928906 is about 8302.3434041239. The cubic root of 68928906 is about 410.0156765769.

The spelling of 68928906 in words is "sixty-eight million, nine hundred twenty-eight thousand, nine hundred six".