84239378 has 8 divisors (see below), whose sum is σ = 127134768. Its totient is φ = 41861124.

The previous prime is 84239377. The next prime is 84239387. The reversal of 84239378 is 87393248.

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

It is not an unprimeable number, because it can be changed into a prime (84239371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128876 + ... + 129527.

It is an arithmetic number, because the mean of its divisors is an integer number (15891846).

Almost surely, 2^84239378 is an apocalyptic number.

84239378 is a deficient number, since it is larger than the sum of its proper divisors (42895390).

84239378 is a wasteful number, since it uses less digits than its factorization.

84239378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258568.

The product of its digits is 290304, while the sum is 44.

The square root of 84239378 is about 9178.2012398944. The cubic root of 84239378 is about 438.3675355187.

The spelling of 84239378 in words is "eighty-four million, two hundred thirty-nine thousand, three hundred seventy-eight".