4646646 has 28 divisors (see below), whose sum is σ = 10453452. Its totient is φ = 1548396.

The previous prime is 4646633. The next prime is 4646647. The reversal of 4646646 is 6466464.

It is a happy number.

4646646 is a `hidden beast` number, since 4 + 6 + 4 + 6 + 646 = 666.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 4646646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4646647) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 136 + ... + 3051.

Almost surely, 2^4646646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4646646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5226726).

4646646 is an abundant number, since it is smaller than the sum of its proper divisors (5806806).

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

4646646 is an equidigital number, since it uses as much as digits as its factorization.

4646646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207 (or 3192 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 4646646 is about 2155.6080348709. The cubic root of 4646646 is about 166.8706134436.

The spelling of 4646646 in words is "four million, six hundred forty-six thousand, six hundred forty-six".