84004105 has 4 divisors (see below), whose sum is σ = 100804932. Its totient is φ = 67203280.

The previous prime is 84004033. The next prime is 84004117. The reversal of 84004105 is 50140048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36228361 + 47775744 = 6019^2 + 6912^2 .

It is not a de Polignac number, because 84004105 - 2¹³ = 83995913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8400406 + ... + 8400415.

It is an arithmetic number, because the mean of its divisors is an integer number (25201233).

Almost surely, 2^84004105 is an apocalyptic number.

It is an amenable number.

84004105 is a deficient number, since it is larger than the sum of its proper divisors (16800827).

84004105 is a wasteful number, since it uses less digits than its factorization.

84004105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16800826.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 84004105 is about 9165.3753332856. The cubic root of 84004105 is about 437.9590479702.

The spelling of 84004105 in words is "eighty-four million, four thousand, one hundred five".