84776889 has 16 divisors (see below), whose sum is σ = 119790720. Its totient is φ = 53235840.

The previous prime is 84776863. The next prime is 84776893. The reversal of 84776889 is 98867748.

It is not a de Polignac number, because 84776889 - 2⁷ = 84776761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84776819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8317 + ... + 15450.

It is an arithmetic number, because the mean of its divisors is an integer number (7486920).

Almost surely, 2^84776889 is an apocalyptic number.

It is an amenable number.

84776889 is a deficient number, since it is larger than the sum of its proper divisors (35013831).

84776889 is a wasteful number, since it uses less digits than its factorization.

84776889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23840.

The product of its digits is 5419008, while the sum is 57.

The square root of 84776889 is about 9207.4366139550. The cubic root of 84776889 is about 439.2979316772.

The spelling of 84776889 in words is "eighty-four million, seven hundred seventy-six thousand, eight hundred eighty-nine".