68649696 has 72 divisors (see below), whose sum is σ = 196068600. Its totient is φ = 22784256.

The previous prime is 68649677. The next prime is 68649697. The reversal of 68649696 is 69694686.

It is a happy number.

68649696 is a `hidden beast` number, since 68 + 6 + 496 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68649697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100171 + ... + 100853.

It is an arithmetic number, because the mean of its divisors is an integer number (2723175).

Almost surely, 2^68649696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68649696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98034300).

68649696 is an abundant number, since it is smaller than the sum of its proper divisors (127418904).

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

68649696 is a wasteful number, since it uses less digits than its factorization.

68649696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 1037 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 68649696 is about 8285.5112093340. The cubic root of 68649696 is about 409.4613111798.

The spelling of 68649696 in words is "sixty-eight million, six hundred forty-nine thousand, six hundred ninety-six".