68705292 has 48 divisors (see below), whose sum is σ = 174585600. Its totient is φ = 20946240.

The previous prime is 68705291. The next prime is 68705293. The reversal of 68705292 is 29250786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68705291) and next prime (68705293).

It is a self number, because there is not a number n which added to its sum of digits gives 68705292.

It is not an unprimeable number, because it can be changed into a prime (68705291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417 + ... + 11807.

It is an arithmetic number, because the mean of its divisors is an integer number (3637200).

Almost surely, 2^68705292 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 68705292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87292800).

68705292 is an abundant number, since it is smaller than the sum of its proper divisors (105880308).

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

68705292 is a wasteful number, since it uses less digits than its factorization.

68705292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10446 (or 10444 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 68705292 is about 8288.8655436073. The cubic root of 68705292 is about 409.5718155223.

The spelling of 68705292 in words is "sixty-eight million, seven hundred five thousand, two hundred ninety-two".