873089778 has 24 divisors (see below), whose sum is σ = 1919355984. Its totient is φ = 264572440.

The previous prime is 873089743. The next prime is 873089783. The reversal of 873089778 is 877980378.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600576 + ... + 602027.

It is an arithmetic number, because the mean of its divisors is an integer number (79973166).

Almost surely, 2^873089778 is an apocalyptic number.

873089778 is an abundant number, since it is smaller than the sum of its proper divisors (1046266206).

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

873089778 is a wasteful number, since it uses less digits than its factorization.

873089778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202630 (or 1202619 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 57.

The square root of 873089778 is about 29548.0926287975. The cubic root of 873089778 is about 955.7690607999.

The spelling of 873089778 in words is "eight hundred seventy-three million, eighty-nine thousand, seven hundred seventy-eight".