508866678 has 64 divisors (see below), whose sum is σ = 1205591040. Its totient is φ = 158544000.

The previous prime is 508866653. The next prime is 508866679. The reversal of 508866678 is 876668805.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508866679) 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, 136783 + ... + 140453.

It is an arithmetic number, because the mean of its divisors is an integer number (18837360).

Almost surely, 2^508866678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 508866678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602795520).

508866678 is an abundant number, since it is smaller than the sum of its proper divisors (696724362).

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

508866678 is a wasteful number, since it uses less digits than its factorization.

508866678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850 (or 3844 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The square root of 508866678 is about 22558.0734549739. The cubic root of 508866678 is about 798.3647210644.

The spelling of 508866678 in words is "five hundred eight million, eight hundred sixty-six thousand, six hundred seventy-eight".