68297856 has 256 divisors, whose sum is σ = 223257600. Its totient is φ = 18247680.

The previous prime is 68297821. The next prime is 68297863. The reversal of 68297856 is 65879286.

It is a junction number, because it is equal to n+sod(n) for n = 68297799 and 68297808.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1845870 + ... + 1845906.

It is an arithmetic number, because the mean of its divisors is an integer number (872100).

Almost surely, 2^68297856 is an apocalyptic number.

68297856 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68297856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111628800).

68297856 is an abundant number, since it is smaller than the sum of its proper divisors (154959744).

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

68297856 is a wasteful number, since it uses less digits than its factorization.

68297856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 95 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 68297856 is about 8264.2516902621. The cubic root of 68297856 is about 408.7605958218.

It can be divided in two parts, 6 and 8297856, that multiplied together give a 4-th power (49787136 = 84⁴).

The spelling of 68297856 in words is "sixty-eight million, two hundred ninety-seven thousand, eight hundred fifty-six".