84811899 has 8 divisors (see below), whose sum is σ = 114936592. Its totient is φ = 55614240.

The previous prime is 84811891. The next prime is 84811913. The reversal of 84811899 is 99811848.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84811899 - 2³ = 84811891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84811891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231544 + ... + 231909.

It is an arithmetic number, because the mean of its divisors is an integer number (14367074).

Almost surely, 2^84811899 is an apocalyptic number.

84811899 is a deficient number, since it is larger than the sum of its proper divisors (30124693).

84811899 is a wasteful number, since it uses less digits than its factorization.

84811899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463517.

The product of its digits is 165888, while the sum is 48.

The square root of 84811899 is about 9209.3375983292. The cubic root of 84811899 is about 439.3583951052.

The spelling of 84811899 in words is "eighty-four million, eight hundred eleven thousand, eight hundred ninety-nine".