84623812 has 48 divisors (see below), whose sum is σ = 184528512. Its totient is φ = 33062400.

The previous prime is 84623809. The next prime is 84623813. The reversal of 84623812 is 21832648.

It is a super-2 number, since 2×84623812² = 14322379114822688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84623813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28812 + ... + 31612.

It is an arithmetic number, because the mean of its divisors is an integer number (3844344).

Almost surely, 2^84623812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84623812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92264256).

84623812 is an abundant number, since it is smaller than the sum of its proper divisors (99904700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84623812 is a wasteful number, since it uses less digits than its factorization.

84623812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908 (or 2906 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 84623812 is about 9199.1201753211. The cubic root of 84623812 is about 439.0333669461.

The spelling of 84623812 in words is "eighty-four million, six hundred twenty-three thousand, eight hundred twelve".