68628312 has 24 divisors (see below), whose sum is σ = 185868540. Its totient is φ = 22876080.

The previous prime is 68628271. The next prime is 68628347. The reversal of 68628312 is 21382686.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

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, 476514 + ... + 476657.

Almost surely, 2^68628312 is an apocalyptic number.

It is an amenable number.

68628312 is an abundant number, since it is smaller than the sum of its proper divisors (117240228).

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

68628312 is a wasteful number, since it uses less digits than its factorization.

68628312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953183 (or 953176 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 68628312 is about 8284.2206634058. The cubic root of 68628312 is about 409.4187917879.

The spelling of 68628312 in words is "sixty-eight million, six hundred twenty-eight thousand, three hundred twelve".