878256603 has 12 divisors (see below), whose sum is σ = 1449820528. Its totient is φ = 501860880.

The previous prime is 878256593. The next prime is 878256607. The reversal of 878256603 is 306652878.

878256603 is a `hidden beast` number, since 8 + 7 + 82 + 566 + 0 + 3 = 666.

878256603 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 878256603 - 2⁵ = 878256571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878256607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6970228 + ... + 6970353.

Almost surely, 2^878256603 is an apocalyptic number.

878256603 is a deficient number, since it is larger than the sum of its proper divisors (571563925).

878256603 is a wasteful number, since it uses less digits than its factorization.

878256603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13940594 (or 13940591 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 878256603 is about 29635.3944296343. The cubic root of 878256603 is about 957.6507237271.

The spelling of 878256603 in words is "eight hundred seventy-eight million, two hundred fifty-six thousand, six hundred three".