68812570 has 8 divisors (see below), whose sum is σ = 123862644. Its totient is φ = 27525024.

The previous prime is 68812543. The next prime is 68812577. The reversal of 68812570 is 7521886.

It can be written as a sum of positive squares in 2 ways, for example, as 61011721 + 7800849 = 7811^2 + 2793^2 .

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 (68812577) 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, 3440619 + ... + 3440638.

Almost surely, 2^68812570 is an apocalyptic number.

68812570 is a deficient number, since it is larger than the sum of its proper divisors (55050074).

68812570 is a wasteful number, since it uses less digits than its factorization.

68812570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6881264.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 68812570 is about 8295.3342307589. The cubic root of 68812570 is about 409.7848762398.

The spelling of 68812570 in words is "sixty-eight million, eight hundred twelve thousand, five hundred seventy".