84386872 has 16 divisors (see below), whose sum is σ = 159235560. Its totient is φ = 41924064.

The previous prime is 84386833. The next prime is 84386909. The reversal of 84386872 is 27868348.

It is a super-2 number, since 2×84386872² = 14242288331888768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 32338 + ... + 34849.

Almost surely, 2^84386872 is an apocalyptic number.

It is an amenable number.

84386872 is a deficient number, since it is larger than the sum of its proper divisors (74848688).

84386872 is a wasteful number, since it uses less digits than its factorization.

84386872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67350 (or 67346 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 84386872 is about 9186.2327425338. The cubic root of 84386872 is about 438.6232309900.

It can be divided in two parts, 84386 and 872, that added together give a palindrome (85258).

The spelling of 84386872 in words is "eighty-four million, three hundred eighty-six thousand, eight hundred seventy-two".