6366636 has 72 divisors (see below), whose sum is σ = 17375904. Its totient is φ = 1958400.

The previous prime is 6366629. The next prime is 6366643.

6366636 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (6366629) and next prime (6366643).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 6366636.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61761 + ... + 61863.

It is an arithmetic number, because the mean of its divisors is an integer number (241332).

Almost surely, 2^6366636 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 6366636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8687952).

6366636 is an abundant number, since it is smaller than the sum of its proper divisors (11009268).

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

6366636 is a wasteful number, since it uses less digits than its factorization.

6366636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 226 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The square root of 6366636 is about 2523.2193721514. The cubic root of 6366636 is about 185.3403619760.

The spelling of 6366636 in words is "six million, three hundred sixty-six thousand, six hundred thirty-six".