84204130 has 8 divisors (see below), whose sum is σ = 151567452. Its totient is φ = 33681648.

The previous prime is 84204101. The next prime is 84204137. The reversal of 84204130 is 3140248.

It can be written as a sum of positive squares in 2 ways, for example, as 82828201 + 1375929 = 9101^2 + 1173^2 .

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 (84204137) 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 3 ways as a sum of consecutive naturals, for example, 4210197 + ... + 4210216.

Almost surely, 2^84204130 is an apocalyptic number.

84204130 is a deficient number, since it is larger than the sum of its proper divisors (67363322).

84204130 is a wasteful number, since it uses less digits than its factorization.

84204130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8420420.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 84204130 is about 9176.2808370276. The cubic root of 84204130 is about 438.3063854371.

Adding to 84204130 its reverse (3140248), we get a palindrome (87344378).

The spelling of 84204130 in words is "eighty-four million, two hundred four thousand, one hundred thirty".