878220783 has 18 divisors (see below), whose sum is σ = 1394348592. Its totient is φ = 532254360.

The previous prime is 878220781. The next prime is 878220787. The reversal of 878220783 is 387022878.

It is not a de Polignac number, because 878220783 - 2¹ = 878220781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878220781) 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 17 ways as a sum of consecutive naturals, for example, 402135 + ... + 404312.

Almost surely, 2^878220783 is an apocalyptic number.

878220783 is a deficient number, since it is larger than the sum of its proper divisors (516127809).

878220783 is a wasteful number, since it uses less digits than its factorization.

878220783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806475 (or 806461 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 878220783 is about 29634.7900785546. The cubic root of 878220783 is about 957.6377041779.

The spelling of 878220783 in words is "eight hundred seventy-eight million, two hundred twenty thousand, seven hundred eighty-three".