84999069 has 12 divisors (see below), whose sum is σ = 123396000. Its totient is φ = 56380104.

The previous prime is 84999049. The next prime is 84999071. The reversal of 84999069 is 96099948.

It is a happy number.

84999069 is a `hidden beast` number, since 8 + 499 + 90 + 69 = 666.

It is not a de Polignac number, because 84999069 - 2⁵ = 84999037 is a prime.

It is a super-2 number, since 2×84999069² = 14449683461733522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84999049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21939 + ... + 25520.

It is an arithmetic number, because the mean of its divisors is an integer number (10283000).

Almost surely, 2^84999069 is an apocalyptic number.

It is an amenable number.

84999069 is a deficient number, since it is larger than the sum of its proper divisors (38396931).

84999069 is a wasteful number, since it uses less digits than its factorization.

84999069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47664 (or 47661 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The square root of 84999069 is about 9219.4939665906. The cubic root of 84999069 is about 439.6813619361.

The spelling of 84999069 in words is "eighty-four million, nine hundred ninety-nine thousand, sixty-nine".