878896890 has 48 divisors (see below), whose sum is σ = 2346901128. Its totient is φ = 228037248.

The previous prime is 878896871. The next prime is 878896891. The reversal of 878896890 is 98698878.

It can be written as a sum of positive squares in 4 ways, for example, as 712409481 + 166487409 = 26691^2 + 12903^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (878896891) 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 23 ways as a sum of consecutive naturals, for example, 128637 + ... + 135296.

Almost surely, 2^878896890 is an apocalyptic number.

878896890 is an abundant number, since it is smaller than the sum of its proper divisors (1468004238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878896890 is a wasteful number, since it uses less digits than its factorization.

878896890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263983 (or 263980 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The square root of 878896890 is about 29646.1952027575. The cubic root of 878896890 is about 957.8833901095.

The spelling of 878896890 in words is "eight hundred seventy-eight million, eight hundred ninety-six thousand, eight hundred ninety".