84045549 has 8 divisors (see below), whose sum is σ = 128069440. Its totient is φ = 48026016.

The previous prime is 84045503. The next prime is 84045581. The reversal of 84045549 is 94554048.

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

It is not a de Polignac number, because 84045549 - 2⁷ = 84045421 is a prime.

It is a super-2 number, since 2×84045549² = 14127308613422802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84040549) 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, 2001064 + ... + 2001105.

It is an arithmetic number, because the mean of its divisors is an integer number (16008680).

Almost surely, 2^84045549 is an apocalyptic number.

It is an amenable number.

84045549 is a deficient number, since it is larger than the sum of its proper divisors (44023891).

84045549 is a wasteful number, since it uses less digits than its factorization.

84045549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002179.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 84045549 is about 9167.6359548141. The cubic root of 84045549 is about 438.0310594934.

The spelling of 84045549 in words is "eighty-four million, forty-five thousand, five hundred forty-nine".