68291648 has 14 divisors (see below), whose sum is σ = 135516366. Its totient is φ = 34145792.

The previous prime is 68291633. The next prime is 68291651. The reversal of 68291648 is 84619286.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68029504 + 262144 = 8248^2 + 512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68291599 and 68291608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533465 + ... + 533592.

Almost surely, 2^68291648 is an apocalyptic number.

It is an amenable number.

68291648 is a deficient number, since it is larger than the sum of its proper divisors (67224718).

68291648 is a wasteful number, since it uses less digits than its factorization.

68291648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067069 (or 1067059 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 68291648 is about 8263.8760881320. The cubic root of 68291648 is about 408.7482105493.

The spelling of 68291648 in words is "sixty-eight million, two hundred ninety-one thousand, six hundred forty-eight".