84847123 has 2 divisors, whose sum is σ = 84847124. Its totient is φ = 84847122.

The previous prime is 84847073. The next prime is 84847159. The reversal of 84847123 is 32174848.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84847123 is a prime.

It is not a weakly prime, because it can be changed into another prime (84847193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42423561 + 42423562.

It is an arithmetic number, because the mean of its divisors is an integer number (42423562).

Almost surely, 2^84847123 is an apocalyptic number.

84847123 is a deficient number, since it is larger than the sum of its proper divisors (1).

84847123 is an equidigital number, since it uses as much as digits as its factorization.

84847123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 37.

The square root of 84847123 is about 9211.2498066223. The cubic root of 84847123 is about 439.4192113283.

The spelling of 84847123 in words is "eighty-four million, eight hundred forty-seven thousand, one hundred twenty-three".