68897304 has 192 divisors, whose sum is σ = 227485440. Its totient is φ = 19128960.

The previous prime is 68897299. The next prime is 68897317. The reversal of 68897304 is 40379886.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68897304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 830047 + ... + 830129.

It is an arithmetic number, because the mean of its divisors is an integer number (1184820).

Almost surely, 2^68897304 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 68897304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113742720).

68897304 is an abundant number, since it is smaller than the sum of its proper divisors (158588136).

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

68897304 is a wasteful number, since it uses less digits than its factorization.

68897304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 68897304 is about 8300.4399883380. The cubic root of 68897304 is about 409.9530067099.

The spelling of 68897304 in words is "sixty-eight million, eight hundred ninety-seven thousand, three hundred four".