68887722 has 16 divisors (see below), whose sum is σ = 137856960. Its totient is φ = 22948992.

The previous prime is 68887699. The next prime is 68887729. The reversal of 68887722 is 22778886.

It is not an unprimeable number, because it can be changed into a prime (68887729) 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, 17203 + ... + 20825.

It is an arithmetic number, because the mean of its divisors is an integer number (8616060).

Almost surely, 2^68887722 is an apocalyptic number.

68887722 is an abundant number, since it is smaller than the sum of its proper divisors (68969238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68887722 is a wasteful number, since it uses less digits than its factorization.

68887722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6797.

The product of its digits is 602112, while the sum is 48.

The square root of 68887722 is about 8299.8627699499. The cubic root of 68887722 is about 409.9340008776.

It can be divided in two parts, 688 and 87722, that added together give a triangular number (88410 = T₄₂₀).

The spelling of 68887722 in words is "sixty-eight million, eight hundred eighty-seven thousand, seven hundred twenty-two".