68733870 has 32 divisors (see below), whose sum is σ = 165179520. Its totient is φ = 18304800.

The previous prime is 68733853. The next prime is 68733943. The reversal of 68733870 is 7833786.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42741 + ... + 44319.

It is an arithmetic number, because the mean of its divisors is an integer number (5161860).

Almost surely, 2^68733870 is an apocalyptic number.

68733870 is an abundant number, since it is smaller than the sum of its proper divisors (96445650).

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

68733870 is a wasteful number, since it uses less digits than its factorization.

68733870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 68733870 is about 8290.5892432324. The cubic root of 68733870 is about 409.6285948500.

The spelling of 68733870 in words is "sixty-eight million, seven hundred thirty-three thousand, eight hundred seventy".