84458881 has 4 divisors (see below), whose sum is σ = 90955732. Its totient is φ = 77962032.

The previous prime is 84458851. The next prime is 84458897. The reversal of 84458881 is 18885448.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35808256 + 48650625 = 5984^2 + 6975^2 .

It is a cyclic number.

It is not a de Polignac number, because 84458881 - 2¹³ = 84450689 is a prime.

It is a super-2 number, since 2×84458881² = 14266605159544322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84458851) 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, 3248406 + ... + 3248431.

It is an arithmetic number, because the mean of its divisors is an integer number (22738933).

Almost surely, 2^84458881 is an apocalyptic number.

It is an amenable number.

84458881 is a deficient number, since it is larger than the sum of its proper divisors (6496851).

84458881 is a wasteful number, since it uses less digits than its factorization.

84458881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496850.

The product of its digits is 327680, while the sum is 46.

The square root of 84458881 is about 9190.1513045216. The cubic root of 84458881 is about 438.7479575017.

The spelling of 84458881 in words is "eighty-four million, four hundred fifty-eight thousand, eight hundred eighty-one".