84267681 has 8 divisors (see below), whose sum is σ = 112400064. Its totient is φ = 56156880.

The previous prime is 84267671. The next prime is 84267697. The reversal of 84267681 is 18676248.

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

It is not a de Polignac number, because 84267681 - 2⁷ = 84267553 is a prime.

It is a super-2 number, since 2×84267681² = 14202084122235522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84267671) 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 7 ways as a sum of consecutive naturals, for example, 9975 + ... + 16371.

It is an arithmetic number, because the mean of its divisors is an integer number (14050008).

Almost surely, 2^84267681 is an apocalyptic number.

It is an amenable number.

84267681 is a deficient number, since it is larger than the sum of its proper divisors (28132383).

84267681 is a wasteful number, since it uses less digits than its factorization.

84267681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10791.

The product of its digits is 129024, while the sum is 42.

The square root of 84267681 is about 9179.7429702579. The cubic root of 84267681 is about 438.4166247031.

It can be divided in two parts, 84267 and 681, that added together give a palindrome (84948).

The spelling of 84267681 in words is "eighty-four million, two hundred sixty-seven thousand, six hundred eighty-one".