68406790 has 16 divisors (see below), whose sum is σ = 123342912. Its totient is φ = 27315904.

The previous prime is 68406773. The next prime is 68406797. The reversal of 68406790 is 9760486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68406797) 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 7 ways as a sum of consecutive naturals, for example, 627 + ... + 11713.

It is an arithmetic number, because the mean of its divisors is an integer number (7708932).

Almost surely, 2^68406790 is an apocalyptic number.

68406790 is a deficient number, since it is larger than the sum of its proper divisors (54936122).

68406790 is a wasteful number, since it uses less digits than its factorization.

68406790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11711.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 68406790 is about 8270.8397397120. The cubic root of 68406790 is about 408.9778026105.

It can be divided in two parts, 68406 and 790, that added together give a palindrome (69196).

The spelling of 68406790 in words is "sixty-eight million, four hundred six thousand, seven hundred ninety".