84499999 has 8 divisors (see below), whose sum is σ = 88335072. Its totient is φ = 80678400.

The previous prime is 84499991. The next prime is 84500021. The reversal of 84499999 is 99999448.

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

It is a cyclic number.

It is not a de Polignac number, because 84499999 - 2³ = 84499991 is a prime.

It is a Duffinian number.

84499999 is a modest number, since divided by 9999 gives 8449 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84499991) 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, 10767 + ... + 16879.

It is an arithmetic number, because the mean of its divisors is an integer number (11041884).

Almost surely, 2^84499999 is an apocalyptic number.

84499999 is a deficient number, since it is larger than the sum of its proper divisors (3835073).

84499999 is a wasteful number, since it uses less digits than its factorization.

84499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737.

The product of its digits is 7558272, while the sum is 61.

The square root of 84499999 is about 9192.3881010323. The cubic root of 84499999 is about 438.8191460354.

The spelling of 84499999 in words is "eighty-four million, four hundred ninety-nine thousand, nine hundred ninety-nine".