68837880 has 128 divisors (see below), whose sum is σ = 216691200. Its totient is φ = 17472000.

The previous prime is 68837861. The next prime is 68837897. The reversal of 68837880 is 8873886.

It is a congruent number.

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, 455805 + ... + 455955.

It is an arithmetic number, because the mean of its divisors is an integer number (1692900).

Almost surely, 2^68837880 is an apocalyptic number.

68837880 is a gapful number since it is divisible by the number (60) 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 68837880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108345600).

68837880 is an abundant number, since it is smaller than the sum of its proper divisors (147853320).

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

68837880 is a wasteful number, since it uses less digits than its factorization.

68837880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 68837880 is about 8296.8596468785. The cubic root of 68837880 is about 409.8351111696.

The spelling of 68837880 in words is "sixty-eight million, eight hundred thirty-seven thousand, eight hundred eighty".