84120393 has 8 divisors (see below), whose sum is σ = 128183488. Its totient is φ = 48068784.

The previous prime is 84120367. The next prime is 84120433. The reversal of 84120393 is 39302148.

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

It is not a de Polignac number, because 84120393 - 2¹³ = 84112201 is a prime.

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 84120393.

It is not an unprimeable number, because it can be changed into a prime (84120343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2002846 + ... + 2002887.

It is an arithmetic number, because the mean of its divisors is an integer number (16022936).

Almost surely, 2^84120393 is an apocalyptic number.

It is an amenable number.

84120393 is a deficient number, since it is larger than the sum of its proper divisors (44063095).

84120393 is a wasteful number, since it uses less digits than its factorization.

84120393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005743.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 84120393 is about 9171.7170148233. The cubic root of 84120393 is about 438.1610456349.

The spelling of 84120393 in words is "eighty-four million, one hundred twenty thousand, three hundred ninety-three".