84204023 has 4 divisors (see below), whose sum is σ = 87107640. Its totient is φ = 81300408.

The previous prime is 84204013. The next prime is 84204031. The reversal of 84204023 is 32040248.

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

It is a cyclic number.

It is not a de Polignac number, because 84204023 - 2⁸ = 84203767 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 84204023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84204013) 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, 1451765 + ... + 1451822.

It is an arithmetic number, because the mean of its divisors is an integer number (21776910).

Almost surely, 2^84204023 is an apocalyptic number.

84204023 is a deficient number, since it is larger than the sum of its proper divisors (2903617).

84204023 is a wasteful number, since it uses less digits than its factorization.

84204023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903616.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 84204023 is about 9176.2750067770. The cubic root of 84204023 is about 438.3061997819.

The spelling of 84204023 in words is "eighty-four million, two hundred four thousand, twenty-three".