68320670 has 16 divisors (see below), whose sum is σ = 134157168. Its totient is φ = 24843840.

The previous prime is 68320639. The next prime is 68320687. The reversal of 68320670 is 7602386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310439 + ... + 310658.

It is an arithmetic number, because the mean of its divisors is an integer number (8384823).

Almost surely, 2^68320670 is an apocalyptic number.

68320670 is a deficient number, since it is larger than the sum of its proper divisors (65836498).

68320670 is a wasteful number, since it uses less digits than its factorization.

68320670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621115.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 68320670 is about 8265.6318572750. The cubic root of 68320670 is about 408.8061044542.

The spelling of 68320670 in words is "sixty-eight million, three hundred twenty thousand, six hundred seventy".