68783108 has 6 divisors (see below), whose sum is σ = 120370446. Its totient is φ = 34391552.

The previous prime is 68783107. The next prime is 68783119. The reversal of 68783108 is 80138786.

It can be written as a sum of positive squares in only one way, i.e., 39967684 + 28815424 = 6322^2 + 5368^2 .

It is a super-2 number, since 2×68783108² = 9462231892279328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68783107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8597885 + ... + 8597892.

It is an arithmetic number, because the mean of its divisors is an integer number (20061741).

Almost surely, 2^68783108 is an apocalyptic number.

It is an amenable number.

68783108 is a deficient number, since it is larger than the sum of its proper divisors (51587338).

68783108 is a wasteful number, since it uses less digits than its factorization.

68783108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17195781 (or 17195779 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 68783108 is about 8293.5582231030. The cubic root of 68783108 is about 409.7263849619.

The spelling of 68783108 in words is "sixty-eight million, seven hundred eighty-three thousand, one hundred eight".