68435722 has 4 divisors (see below), whose sum is σ = 102653586. Its totient is φ = 34217860.

The previous prime is 68435699. The next prime is 68435723. The reversal of 68435722 is 22753486.

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., 54154881 + 14280841 = 7359^2 + 3779^2 .

It is a super-2 number, since 2×68435722² = 9366896091322568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68435723) 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 as a sum of consecutive naturals, namely, 17108929 + ... + 17108932.

Almost surely, 2^68435722 is an apocalyptic number.

68435722 is a deficient number, since it is larger than the sum of its proper divisors (34217864).

68435722 is a wasteful number, since it uses less digits than its factorization.

68435722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34217863.

The product of its digits is 80640, while the sum is 37.

The square root of 68435722 is about 8272.5885912452. The cubic root of 68435722 is about 409.0354522386.

The spelling of 68435722 in words is "sixty-eight million, four hundred thirty-five thousand, seven hundred twenty-two".