84164723 has 4 divisors (see below), whose sum is σ = 84605568. Its totient is φ = 83723880.

The previous prime is 84164713. The next prime is 84164747. The reversal of 84164723 is 32746148.

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 84164723 - 2¹² = 84160627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84164713) 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, 220136 + ... + 220517.

It is an arithmetic number, because the mean of its divisors is an integer number (21151392).

Almost surely, 2^84164723 is an apocalyptic number.

84164723 is a deficient number, since it is larger than the sum of its proper divisors (440845).

84164723 is a wasteful number, since it uses less digits than its factorization.

84164723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440844.

The product of its digits is 32256, while the sum is 35.

The square root of 84164723 is about 9174.1333650651. The cubic root of 84164723 is about 438.2379998964.

The spelling of 84164723 in words is "eighty-four million, one hundred sixty-four thousand, seven hundred twenty-three".