68910722 has 4 divisors (see below), whose sum is σ = 103366086. Its totient is φ = 34455360.

The previous prime is 68910719. The next prime is 68910727. The reversal of 68910722 is 22701986.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68376361 + 534361 = 8269^2 + 731^2 .

It is a super-2 number, since 2×68910722² = 9497375213122568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68910727) by changing a digit.

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 as a sum of consecutive naturals, namely, 17227679 + ... + 17227682.

Almost surely, 2^68910722 is an apocalyptic number.

68910722 is a deficient number, since it is larger than the sum of its proper divisors (34455364).

68910722 is a wasteful number, since it uses less digits than its factorization.

68910722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34455363.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 68910722 is about 8301.2482193945. The cubic root of 68910722 is about 409.9796182611.

It can be divided in two parts, 689 and 10722, that added together give a palindrome (11411).

The spelling of 68910722 in words is "sixty-eight million, nine hundred ten thousand, seven hundred twenty-two".