878785497 has 16 divisors (see below), whose sum is σ = 1303992960. Its totient is φ = 584917200.

The previous prime is 878785487. The next prime is 878785499. The reversal of 878785497 is 794587878.

878785497 is a `hidden beast` number, since 8 + 7 + 87 + 8 + 549 + 7 = 666.

878785497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 878785497 - 2¹¹ = 878783449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (878785499) 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, 8754 + ... + 42827.

It is an arithmetic number, because the mean of its divisors is an integer number (81499560).

Almost surely, 2^878785497 is an apocalyptic number.

It is an amenable number.

878785497 is a deficient number, since it is larger than the sum of its proper divisors (425207463).

878785497 is a wasteful number, since it uses less digits than its factorization.

878785497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52221 (or 52215 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 63.

The square root of 878785497 is about 29644.3164367135. The cubic root of 878785497 is about 957.8429204352.

The spelling of 878785497 in words is "eight hundred seventy-eight million, seven hundred eighty-five thousand, four hundred ninety-seven".