878781963 has 8 divisors (see below), whose sum is σ = 1173742288. Its totient is φ = 584838144.

The previous prime is 878781949. The next prime is 878781973. The reversal of 878781963 is 369187878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 878781963 - 2⁴ = 878781947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878781973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252106 + ... + 255567.

It is an arithmetic number, because the mean of its divisors is an integer number (146717786).

Almost surely, 2^878781963 is an apocalyptic number.

878781963 is a deficient number, since it is larger than the sum of its proper divisors (294960325).

878781963 is a wasteful number, since it uses less digits than its factorization.

878781963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508253.

The product of its digits is 4064256, while the sum is 57.

The square root of 878781963 is about 29644.2568299494. The cubic root of 878781963 is about 957.8416364581.

The spelling of 878781963 in words is "eight hundred seventy-eight million, seven hundred eighty-one thousand, nine hundred sixty-three".