878808081 has 16 divisors (see below), whose sum is σ = 1294614144. Its totient is φ = 527433984.

The previous prime is 878808061. The next prime is 878808089. The reversal of 878808081 is 180808878.

It is not a de Polignac number, because 878808081 - 2⁶ = 878808017 is a prime.

It is a super-2 number, since 2×878808081² = 1544607286461805122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 878808081.

It is not an unprimeable number, because it can be changed into a prime (878808089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373426 + ... + 375771.

It is an arithmetic number, because the mean of its divisors is an integer number (80913384).

Almost surely, 2^878808081 is an apocalyptic number.

It is an amenable number.

878808081 is a deficient number, since it is larger than the sum of its proper divisors (415806063).

878808081 is a wasteful number, since it uses less digits than its factorization.

878808081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749240.

The product of its (nonzero) digits is 229376, while the sum is 48.

The square root of 878808081 is about 29644.6973504538. The cubic root of 878808081 is about 957.8511255999.

The spelling of 878808081 in words is "eight hundred seventy-eight million, eight hundred eight thousand, eighty-one".