878427492 has 12 divisors (see below), whose sum is σ = 2049664176. Its totient is φ = 292809160.

The previous prime is 878427409. The next prime is 878427493. The reversal of 878427492 is 294724878.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (878427493) 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 3 ways as a sum of consecutive naturals, for example, 36601134 + ... + 36601157.

It is an arithmetic number, because the mean of its divisors is an integer number (170805348).

Almost surely, 2^878427492 is an apocalyptic number.

It is an amenable number.

878427492 is an abundant number, since it is smaller than the sum of its proper divisors (1171236684).

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

878427492 is a wasteful number, since it uses less digits than its factorization.

878427492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73202298 (or 73202296 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 51.

The square root of 878427492 is about 29638.2774803125. The cubic root of 878427492 is about 957.7128321363.

The spelling of 878427492 in words is "eight hundred seventy-eight million, four hundred twenty-seven thousand, four hundred ninety-two".