68704870 has 32 divisors (see below), whose sum is σ = 133594272. Its totient is φ = 25289472.

The previous prime is 68704861. The next prime is 68704877. The reversal of 68704870 is 7840786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68704877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56994 + ... + 58186.

It is an arithmetic number, because the mean of its divisors is an integer number (4174821).

Almost surely, 2^68704870 is an apocalyptic number.

68704870 is a deficient number, since it is larger than the sum of its proper divisors (64889402).

68704870 is a wasteful number, since it uses less digits than its factorization.

68704870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 68704870 is about 8288.8400877324. The cubic root of 68704870 is about 409.5709769665.

The spelling of 68704870 in words is "sixty-eight million, seven hundred four thousand, eight hundred seventy".