68887880 has 32 divisors (see below), whose sum is σ = 155390400. Its totient is φ = 27485376.

The previous prime is 68887879. The next prime is 68887883. The reversal of 68887880 is 8878886.

It is not an unprimeable number, because it can be changed into a prime (68887883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15599 + ... + 19521.

It is an arithmetic number, because the mean of its divisors is an integer number (4855950).

Almost surely, 2^68887880 is an apocalyptic number.

It is an amenable number.

68887880 is an abundant number, since it is smaller than the sum of its proper divisors (86502520).

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

68887880 is a wasteful number, since it uses less digits than its factorization.

68887880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373 (or 4369 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 53.

The square root of 68887880 is about 8299.8722881741. The cubic root of 68887880 is about 409.9343142838.

The spelling of 68887880 in words is "sixty-eight million, eight hundred eighty-seven thousand, eight hundred eighty".