84368687 has 12 divisors (see below), whose sum is σ = 91639080. Its totient is φ = 77639328.

The previous prime is 84368677. The next prime is 84368689. The reversal of 84368687 is 78686348.

It is a happy number.

It is not a de Polignac number, because 84368687 - 2¹⁰ = 84367663 is a prime.

It is a super-2 number, since 2×84368687² = 14236150692207938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84368689) 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, 78389 + ... + 79457.

It is an arithmetic number, because the mean of its divisors is an integer number (7636590).

Almost surely, 2^84368687 is an apocalyptic number.

84368687 is a deficient number, since it is larger than the sum of its proper divisors (7270393).

84368687 is a wasteful number, since it uses less digits than its factorization.

84368687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562 (or 1549 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The square root of 84368687 is about 9185.2428928145. The cubic root of 84368687 is about 438.5917216004.

The spelling of 84368687 in words is "eighty-four million, three hundred sixty-eight thousand, six hundred eighty-seven".