68649082 has 16 divisors (see below), whose sum is σ = 105082920. Its totient is φ = 33628672.

The previous prime is 68649079. The next prime is 68649101. The reversal of 68649082 is 28094686.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45981961 + 22667121 = 6781^2 + 4761^2 .

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 7 ways as a sum of consecutive naturals, for example, 18408 + ... + 21820.

Almost surely, 2^68649082 is an apocalyptic number.

68649082 is a deficient number, since it is larger than the sum of its proper divisors (36433838).

68649082 is a wasteful number, since it uses less digits than its factorization.

68649082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 68649082 is about 8285.4741566189. The cubic root of 68649082 is about 409.4600904412.

The spelling of 68649082 in words is "sixty-eight million, six hundred forty-nine thousand, eighty-two".