84439055 has 4 divisors (see below), whose sum is σ = 101326872. Its totient is φ = 67551240.

The previous prime is 84439037. The next prime is 84439073. The reversal of 84439055 is 55093448.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (84439037) and next prime (84439073).

It is not a de Polignac number, because 84439055 - 2¹⁶ = 84373519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8443901 + ... + 8443910.

It is an arithmetic number, because the mean of its divisors is an integer number (25331718).

Almost surely, 2^84439055 is an apocalyptic number.

84439055 is a deficient number, since it is larger than the sum of its proper divisors (16887817).

84439055 is a wasteful number, since it uses less digits than its factorization.

84439055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16887816.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 84439055 is about 9189.0725865019. The cubic root of 84439055 is about 438.7136240381.

The spelling of 84439055 in words is "eighty-four million, four hundred thirty-nine thousand, fifty-five".