84439049 has 16 divisors (see below), whose sum is σ = 91010304. Its totient is φ = 78144000.

The previous prime is 84439037. The next prime is 84439073. The reversal of 84439049 is 94093448.

It is a cyclic number.

It is not a de Polignac number, because 84439049 - 2¹² = 84434953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84438997 and 84439015.

It is not an unprimeable number, because it can be changed into a prime (84439079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142097 + ... + 142689.

It is an arithmetic number, because the mean of its divisors is an integer number (5688144).

Almost surely, 2^84439049 is an apocalyptic number.

It is an amenable number.

84439049 is a deficient number, since it is larger than the sum of its proper divisors (6571255).

84439049 is a wasteful number, since it uses less digits than its factorization.

84439049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 84439049 is about 9189.0722600271. The cubic root of 84439049 is about 438.7136136469.

It can be divided in two parts, 844 and 39049, that added together give a palindrome (39893).

The spelling of 84439049 in words is "eighty-four million, four hundred thirty-nine thousand, forty-nine".