878522747 has 4 divisors (see below), whose sum is σ = 880619880. Its totient is φ = 876425616.

The previous prime is 878522737. The next prime is 878522819. The reversal of 878522747 is 747225878.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 878522747 - 2¹² = 878518651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 878522695 and 878522704.

It is not an unprimeable number, because it can be changed into a prime (878522717) 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, 1047938 + ... + 1048775.

It is an arithmetic number, because the mean of its divisors is an integer number (220154970).

Almost surely, 2^878522747 is an apocalyptic number.

878522747 is a deficient number, since it is larger than the sum of its proper divisors (2097133).

878522747 is a wasteful number, since it uses less digits than its factorization.

878522747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097132.

The product of its digits is 1756160, while the sum is 50.

The square root of 878522747 is about 29639.8843958609. The cubic root of 878522747 is about 957.7474484020.

The spelling of 878522747 in words is "eight hundred seventy-eight million, five hundred twenty-two thousand, seven hundred forty-seven".