84416687 has 4 divisors (see below), whose sum is σ = 85205736. Its totient is φ = 83627640.

The previous prime is 84416681. The next prime is 84416707. The reversal of 84416687 is 78661448.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84416687 - 2⁴ = 84416671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84416681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394364 + ... + 394577.

It is an arithmetic number, because the mean of its divisors is an integer number (21301434).

Almost surely, 2^84416687 is an apocalyptic number.

84416687 is a deficient number, since it is larger than the sum of its proper divisors (789049).

84416687 is a wasteful number, since it uses less digits than its factorization.

84416687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789048.

The product of its digits is 258048, while the sum is 44.

The square root of 84416687 is about 9187.8554080917. The cubic root of 84416687 is about 438.6748820406.

The spelling of 84416687 in words is "eighty-four million, four hundred sixteen thousand, six hundred eighty-seven".