878791063 has 4 divisors (see below), whose sum is σ = 879139720. Its totient is φ = 878442408.

The previous prime is 878791051. The next prime is 878791079. The reversal of 878791063 is 360197878.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-878791063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 878790998 and 878791016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878791003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170520 + ... + 175597.

It is an arithmetic number, because the mean of its divisors is an integer number (219784930).

Almost surely, 2^878791063 is an apocalyptic number.

878791063 is a deficient number, since it is larger than the sum of its proper divisors (348657).

878791063 is a wasteful number, since it uses less digits than its factorization.

878791063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348656.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 878791063 is about 29644.4103162805. The cubic root of 878791063 is about 957.8449426740.

The spelling of 878791063 in words is "eight hundred seventy-eight million, seven hundred ninety-one thousand, sixty-three".