868687480 has 32 divisors (see below), whose sum is σ = 2007375840. Its totient is φ = 338083200.

The previous prime is 868687411. The next prime is 868687481. The reversal of 868687480 is 84786868.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868687481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291996 + ... + 294955.

It is an arithmetic number, because the mean of its divisors is an integer number (62730495).

Almost surely, 2^868687480 is an apocalyptic number.

It is an amenable number.

868687480 is an abundant number, since it is smaller than the sum of its proper divisors (1138688360).

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

868687480 is a wasteful number, since it uses less digits than its factorization.

868687480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586999 (or 586995 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 55.

The square root of 868687480 is about 29473.5047118594. The cubic root of 868687480 is about 954.1599586450.

The spelling of 868687480 in words is "eight hundred sixty-eight million, six hundred eighty-seven thousand, four hundred eighty".