4999644 has 60 divisors (see below), whose sum is σ = 14087304. Its totient is φ = 1537056.

The previous prime is 4999639. The next prime is 4999651. The reversal of 4999644 is 4469994.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 4999644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3619 + ... + 4805.

Almost surely, 2^4999644 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 4999644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7043652).

4999644 is an abundant number, since it is smaller than the sum of its proper divisors (9087660).

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

4999644 is a wasteful number, since it uses less digits than its factorization.

4999644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1205 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 4999644 is about 2235.9883720628. The cubic root of 4999644 is about 170.9935362284.

The spelling of 4999644 in words is "four million, nine hundred ninety-nine thousand, six hundred forty-four".