878988854 has 4 divisors (see below), whose sum is σ = 1318483284. Its totient is φ = 439494426.

The previous prime is 878988829. The next prime is 878988863. The reversal of 878988854 is 458889878.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 458889878 = 2 ⋅229444939.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219747212 + ... + 219747215.

It is an arithmetic number, because the mean of its divisors is an integer number (329620821).

Almost surely, 2^878988854 is an apocalyptic number.

878988854 is a deficient number, since it is larger than the sum of its proper divisors (439494430).

878988854 is a wasteful number, since it uses less digits than its factorization.

878988854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439494429.

The product of its digits is 41287680, while the sum is 65.

The square root of 878988854 is about 29647.7461875266. The cubic root of 878988854 is about 957.9167985471.

The spelling of 878988854 in words is "eight hundred seventy-eight million, nine hundred eighty-eight thousand, eight hundred fifty-four".