84106393 has 6 divisors (see below), whose sum is σ = 97838106. Its totient is φ = 72091152.

The previous prime is 84106381. The next prime is 84106397. The reversal of 84106393 is 39360148.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 8277129 = 8708^2 + 2877^2 .

It is a de Polignac number, because none of the positive numbers 2^k-84106393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84106397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 858180 + ... + 858277.

It is an arithmetic number, because the mean of its divisors is an integer number (16306351).

Almost surely, 2^84106393 is an apocalyptic number.

It is an amenable number.

84106393 is a deficient number, since it is larger than the sum of its proper divisors (13731713).

84106393 is a wasteful number, since it uses less digits than its factorization.

84106393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716471 (or 1716464 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 84106393 is about 9170.9537671935. The cubic root of 84106393 is about 438.1367368446.

The spelling of 84106393 in words is "eighty-four million, one hundred six thousand, three hundred ninety-three".