878675783 has 4 divisors (see below), whose sum is σ = 878964240. Its totient is φ = 878387328.

The previous prime is 878675779. The next prime is 878675801. The reversal of 878675783 is 387576878.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 878675783 - 2² = 878675779 is a prime.

It is a super-2 number, since 2×878675783² = 1544142263261326178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878675723) 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 3 ways as a sum of consecutive naturals, for example, 139610 + ... + 145767.

It is an arithmetic number, because the mean of its divisors is an integer number (219741060).

Almost surely, 2^878675783 is an apocalyptic number.

878675783 is a deficient number, since it is larger than the sum of its proper divisors (288457).

878675783 is a wasteful number, since it uses less digits than its factorization.

878675783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288456.

The product of its digits is 15805440, while the sum is 59.

The square root of 878675783 is about 29642.4658724607. The cubic root of 878675783 is about 957.8030574075.

The spelling of 878675783 in words is "eight hundred seventy-eight million, six hundred seventy-five thousand, seven hundred eighty-three".