84807123 has 16 divisors (see below), whose sum is σ = 114723840. Its totient is φ = 55720224.

The previous prime is 84807091. The next prime is 84807139. The reversal of 84807123 is 32170848.

It is not a de Polignac number, because 84807123 - 2⁵ = 84807091 is a prime.

It is a super-2 number, since 2×84807123² = 14384496223074258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84807143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72340 + ... + 73502.

It is an arithmetic number, because the mean of its divisors is an integer number (7170240).

Almost surely, 2^84807123 is an apocalyptic number.

84807123 is a deficient number, since it is larger than the sum of its proper divisors (29916717).

84807123 is a wasteful number, since it uses less digits than its factorization.

84807123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 84807123 is about 9209.0782926415. The cubic root of 84807123 is about 439.3501477755.

The spelling of 84807123 in words is "eighty-four million, eight hundred seven thousand, one hundred twenty-three".