68256970 has 8 divisors (see below), whose sum is σ = 122862564. Its totient is φ = 27302784.

The previous prime is 68256961. The next prime is 68256973. The reversal of 68256970 is 7965286.

It can be written as a sum of positive squares in 2 ways, for example, as 67519089 + 737881 = 8217^2 + 859^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68256973) 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, 3412839 + ... + 3412858.

Almost surely, 2^68256970 is an apocalyptic number.

68256970 is a deficient number, since it is larger than the sum of its proper divisors (54605594).

68256970 is a wasteful number, since it uses less digits than its factorization.

68256970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6825704.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 68256970 is about 8261.7776537498. Note that the first 3 decimals coincide. The cubic root of 68256970 is about 408.6790123834.

The spelling of 68256970 in words is "sixty-eight million, two hundred fifty-six thousand, nine hundred seventy".