84646644 has 24 divisors (see below), whose sum is σ = 198377760. Its totient is φ = 28091424.

The previous prime is 84646619. The next prime is 84646657. The reversal of 84646644 is 44664648.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 84646596 and 84646605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12654 + ... + 18149.

It is an arithmetic number, because the mean of its divisors is an integer number (8265740).

Almost surely, 2^84646644 is an apocalyptic number.

It is an amenable number.

84646644 is an abundant number, since it is smaller than the sum of its proper divisors (113731116).

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

84646644 is a wasteful number, since it uses less digits than its factorization.

84646644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31039 (or 31037 counting only the distinct ones).

The product of its digits is 442368, while the sum is 42.

The square root of 84646644 is about 9200.3610798707. The cubic root of 84646644 is about 439.0728479867.

The spelling of 84646644 in words is "eighty-four million, six hundred forty-six thousand, six hundred forty-four".