878542653 has 32 divisors (see below), whose sum is σ = 1251417600. Its totient is φ = 546664896.

The previous prime is 878542631. The next prime is 878542657. The reversal of 878542653 is 356245878.

It is not a de Polignac number, because 878542653 - 2⁸ = 878542397 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878542657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1725763 + ... + 1726271.

It is an arithmetic number, because the mean of its divisors is an integer number (39106800).

Almost surely, 2^878542653 is an apocalyptic number.

It is an amenable number.

878542653 is a deficient number, since it is larger than the sum of its proper divisors (372874947).

878542653 is a wasteful number, since it uses less digits than its factorization.

878542653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921.

The product of its digits is 1612800, while the sum is 48.

The square root of 878542653 is about 29640.2201914898. The cubic root of 878542653 is about 957.7546820515.

The spelling of 878542653 in words is "eight hundred seventy-eight million, five hundred forty-two thousand, six hundred fifty-three".