84236889 has 32 divisors (see below), whose sum is σ = 128471040. Its totient is φ = 48628800.

The previous prime is 84236881. The next prime is 84236891. The reversal of 84236889 is 98863248.

It is a happy number.

It is not a de Polignac number, because 84236889 - 2³ = 84236881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84236881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67927 + ... + 69155.

It is an arithmetic number, because the mean of its divisors is an integer number (4014720).

Almost surely, 2^84236889 is an apocalyptic number.

It is an amenable number.

84236889 is a deficient number, since it is larger than the sum of its proper divisors (44234151).

84236889 is a wasteful number, since it uses less digits than its factorization.

84236889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341.

The product of its digits is 663552, while the sum is 48.

The square root of 84236889 is about 9178.0656458755. The cubic root of 84236889 is about 438.3632180306.

The spelling of 84236889 in words is "eighty-four million, two hundred thirty-six thousand, eight hundred eighty-nine".