84872923 has 2 divisors, whose sum is σ = 84872924. Its totient is φ = 84872922.

The previous prime is 84872873. The next prime is 84872941. The reversal of 84872923 is 32927848.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84872923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84872923.

It is not a weakly prime, because it can be changed into another prime (84872423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42436461 + 42436462.

It is an arithmetic number, because the mean of its divisors is an integer number (42436462).

Almost surely, 2^84872923 is an apocalyptic number.

84872923 is a deficient number, since it is larger than the sum of its proper divisors (1).

84872923 is an equidigital number, since it uses as much as digits as its factorization.

84872923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 84872923 is about 9212.6501615985. The cubic root of 84872923 is about 439.4637458053.

The spelling of 84872923 in words is "eighty-four million, eight hundred seventy-two thousand, nine hundred twenty-three".