84889899 has 12 divisors (see below), whose sum is σ = 122699200. Its totient is φ = 56556144.

The previous prime is 84889897. The next prime is 84889901. The reversal of 84889899 is 99898848.

It is an interprime number because it is at equal distance from previous prime (84889897) and next prime (84889901).

It is not a de Polignac number, because 84889899 - 2¹ = 84889897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84889897) by changing a digit.

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, 22737 + ... + 26205.

Almost surely, 2^84889899 is an apocalyptic number.

84889899 is a deficient number, since it is larger than the sum of its proper divisors (37809301).

84889899 is a wasteful number, since it uses less digits than its factorization.

84889899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6194 (or 6191 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The square root of 84889899 is about 9213.5714573666. The cubic root of 84889899 is about 439.4930438780.

The spelling of 84889899 in words is "eighty-four million, eight hundred eighty-nine thousand, eight hundred ninety-nine".