68502870 has 96 divisors (see below), whose sum is σ = 188457984. Its totient is φ = 17236800.

The previous prime is 68502857. The next prime is 68502883. The reversal of 68502870 is 7820586.

It is an interprime number because it is at equal distance from previous prime (68502857) and next prime (68502883).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119685 + ... + 120255.

It is an arithmetic number, because the mean of its divisors is an integer number (1963104).

Almost surely, 2^68502870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68502870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94228992).

68502870 is an abundant number, since it is smaller than the sum of its proper divisors (119955114).

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

68502870 is a wasteful number, since it uses less digits than its factorization.

68502870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 68502870 is about 8276.6460598482. The cubic root of 68502870 is about 409.1691881181.

The spelling of 68502870 in words is "sixty-eight million, five hundred two thousand, eight hundred seventy".