68646886 has 64 divisors (see below), whose sum is σ = 139968000. Its totient is φ = 24433920.

The previous prime is 68646871. The next prime is 68646887. The reversal of 68646886 is 68864686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68646887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84450 + ... + 85258.

It is an arithmetic number, because the mean of its divisors is an integer number (2187000).

Almost surely, 2^68646886 is an apocalyptic number.

68646886 is an abundant number, since it is smaller than the sum of its proper divisors (71321114).

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

68646886 is a wasteful number, since it uses less digits than its factorization.

68646886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877.

The product of its digits is 2654208, while the sum is 52.

The square root of 68646886 is about 8285.3416344771. The cubic root of 68646886 is about 409.4557243525.

The spelling of 68646886 in words is "sixty-eight million, six hundred forty-six thousand, eight hundred eighty-six".