84466681 has 8 divisors (see below), whose sum is σ = 91038920. Its totient is φ = 77905152.

The previous prime is 84466651. The next prime is 84466703. The reversal of 84466681 is 18666448.

It can be written as a sum of positive squares in 4 ways, for example, as 14175225 + 70291456 = 3765^2 + 8384^2 .

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

It is not a de Polignac number, because 84466681 - 2⁷ = 84466553 is a prime.

It is a super-2 number, since 2×84466681² = 14269240398311522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84466631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22615 + ... + 26083.

It is an arithmetic number, because the mean of its divisors is an integer number (11379865).

Almost surely, 2^84466681 is an apocalyptic number.

It is an amenable number.

84466681 is a deficient number, since it is larger than the sum of its proper divisors (6572239).

84466681 is a wasteful number, since it uses less digits than its factorization.

84466681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355.

The product of its digits is 221184, while the sum is 43.

The square root of 84466681 is about 9190.5756620573. The cubic root of 84466681 is about 438.7614635955.

The spelling of 84466681 in words is "eighty-four million, four hundred sixty-six thousand, six hundred eighty-one".