84144535 has 8 divisors (see below), whose sum is σ = 101121696. Its totient is φ = 67216800.

The previous prime is 84144461. The next prime is 84144539. The reversal of 84144535 is 53544148.

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

It is not a de Polignac number, because 84144535 - 2¹⁹ = 83620247 is a prime.

It is a super-3 number, since 3×84144535³ (a number of 25 digits) contains 333 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 84144535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84144539) 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, 8499 + ... + 15508.

It is an arithmetic number, because the mean of its divisors is an integer number (12640212).

Almost surely, 2^84144535 is an apocalyptic number.

84144535 is a deficient number, since it is larger than the sum of its proper divisors (16977161).

84144535 is a wasteful number, since it uses less digits than its factorization.

84144535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24713.

The product of its digits is 38400, while the sum is 34.

The square root of 84144535 is about 9173.0330316641. The cubic root of 84144535 is about 438.2029580725.

The spelling of 84144535 in words is "eighty-four million, one hundred forty-four thousand, five hundred thirty-five".