68779224 has 24 divisors (see below), whose sum is σ = 186277260. Its totient is φ = 22926384.

The previous prime is 68779219. The next prime is 68779237. The reversal of 68779224 is 42297786.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 68779224.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 477562 + ... + 477705.

Almost surely, 2^68779224 is an apocalyptic number.

It is an amenable number.

68779224 is an abundant number, since it is smaller than the sum of its proper divisors (117498036).

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

68779224 is a wasteful number, since it uses less digits than its factorization.

68779224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955279 (or 955272 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 68779224 is about 8293.3240621599. The cubic root of 68779224 is about 409.7186727620.

The spelling of 68779224 in words is "sixty-eight million, seven hundred seventy-nine thousand, two hundred twenty-four".