68814772 has 18 divisors (see below), whose sum is σ = 130403238. Its totient is φ = 31760352.

The previous prime is 68814763. The next prime is 68814787. The reversal of 68814772 is 27741886.

It can be written as a sum of positive squares in 3 ways, for example, as 9278116 + 59536656 = 3046^2 + 7716^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 50223 + ... + 51574.

Almost surely, 2^68814772 is an apocalyptic number.

It is an amenable number.

68814772 is a deficient number, since it is larger than the sum of its proper divisors (61588466).

68814772 is a wasteful number, since it uses less digits than its factorization.

68814772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101827 (or 101812 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 68814772 is about 8295.4669549098. The cubic root of 68814772 is about 409.7892472274.

The spelling of 68814772 in words is "sixty-eight million, eight hundred fourteen thousand, seven hundred seventy-two".