84181339 has 8 divisors (see below), whose sum is σ = 92941632. Its totient is φ = 75605640.

The previous prime is 84181333. The next prime is 84181367. The reversal of 84181339 is 93318148.

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

It is not a de Polignac number, because 84181339 - 2¹³ = 84173147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84181298 and 84181307.

It is not an unprimeable number, because it can be changed into a prime (84181333) 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, 45189 + ... + 47014.

It is an arithmetic number, because the mean of its divisors is an integer number (11617704).

Almost surely, 2^84181339 is an apocalyptic number.

84181339 is a deficient number, since it is larger than the sum of its proper divisors (8760293).

84181339 is a wasteful number, since it uses less digits than its factorization.

84181339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92297.

The product of its digits is 20736, while the sum is 37.

The square root of 84181339 is about 9175.0389099992. The cubic root of 84181339 is about 438.2668373285.

The spelling of 84181339 in words is "eighty-four million, one hundred eighty-one thousand, three hundred thirty-nine".