68723090 has 16 divisors (see below), whose sum is σ = 123977088. Its totient is φ = 27428016.

The previous prime is 68723089. The next prime is 68723111. The reversal of 68723090 is 9032786.

It is a self number, because there is not a number n which added to its sum of digits gives 68723090.

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, 2792 + ... + 12051.

It is an arithmetic number, because the mean of its divisors is an integer number (7748568).

Almost surely, 2^68723090 is an apocalyptic number.

68723090 is a deficient number, since it is larger than the sum of its proper divisors (55253998).

68723090 is a wasteful number, since it uses less digits than its factorization.

68723090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15313.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 68723090 is about 8289.9390830090. The cubic root of 68723090 is about 409.6071787848.

The spelling of 68723090 in words is "sixty-eight million, seven hundred twenty-three thousand, ninety".