4989816 has 64 divisors (see below), whose sum is σ = 14935200. Its totient is φ = 1534464.

The previous prime is 4989811. The next prime is 4989821. The reversal of 4989816 is 6189894.

It is an interprime number because it is at equal distance from previous prime (4989811) and next prime (4989821).

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989811) 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, 1920 + ... + 3696.

Almost surely, 2^4989816 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 4989816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7467600).

4989816 is an abundant number, since it is smaller than the sum of its proper divisors (9945384).

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

4989816 is a wasteful number, since it uses less digits than its factorization.

4989816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805 (or 1795 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 4989816 is about 2233.7896051329. The cubic root of 4989816 is about 170.8814197900.

The spelling of 4989816 in words is "four million, nine hundred eighty-nine thousand, eight hundred sixteen".