84775123 has 2 divisors, whose sum is σ = 84775124. Its totient is φ = 84775122.

The previous prime is 84775087. The next prime is 84775129. The reversal of 84775123 is 32157748.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84775123 - 2¹⁷ = 84644051 is a prime.

It is not a weakly prime, because it can be changed into another prime (84775129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42387561 + 42387562.

It is an arithmetic number, because the mean of its divisors is an integer number (42387562).

Almost surely, 2^84775123 is an apocalyptic number.

84775123 is a deficient number, since it is larger than the sum of its proper divisors (1).

84775123 is an equidigital number, since it uses as much as digits as its factorization.

84775123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 84775123 is about 9207.3407127140. The cubic root of 84775123 is about 439.2948812958.

The spelling of 84775123 in words is "eighty-four million, seven hundred seventy-five thousand, one hundred twenty-three".