878512782 has 32 divisors (see below), whose sum is σ = 2072807424. Its totient is φ = 242906400.

The previous prime is 878512771. The next prime is 878512783. The reversal of 878512782 is 287215878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878512783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336069 + ... + 338672.

It is an arithmetic number, because the mean of its divisors is an integer number (64775232).

Almost surely, 2^878512782 is an apocalyptic number.

878512782 is an abundant number, since it is smaller than the sum of its proper divisors (1194294642).

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

878512782 is a wasteful number, since it uses less digits than its factorization.

878512782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674784.

The product of its digits is 501760, while the sum is 48.

The square root of 878512782 is about 29639.7162941888. The cubic root of 878512782 is about 957.7438271756.

The spelling of 878512782 in words is "eight hundred seventy-eight million, five hundred twelve thousand, seven hundred eighty-two".