84594981 has 8 divisors (see below), whose sum is σ = 112864864. Its totient is φ = 56360880.

The previous prime is 84594947. The next prime is 84595003. The reversal of 84594981 is 18949548.

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

It is not a de Polignac number, because 84594981 - 2²³ = 76206373 is a prime.

It is a super-2 number, since 2×84594981² = 14312621620780722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84594981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84594901) 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, 2830 + ... + 13311.

It is an arithmetic number, because the mean of its divisors is an integer number (14108108).

Almost surely, 2^84594981 is an apocalyptic number.

It is an amenable number.

84594981 is a deficient number, since it is larger than the sum of its proper divisors (28269883).

84594981 is a wasteful number, since it uses less digits than its factorization.

84594981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17891.

The product of its digits is 414720, while the sum is 48.

The square root of 84594981 is about 9197.5529897903. The cubic root of 84594981 is about 438.9835023022.

The spelling of 84594981 in words is "eighty-four million, five hundred ninety-four thousand, nine hundred eighty-one".