6633972 has 36 divisors (see below), whose sum is σ = 16912896. Its totient is φ = 2192400.

The previous prime is 6633967. The next prime is 6634009. The reversal of 6633972 is 2793366.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a d-powerful number, because it can be written as 6⁶ + 6⁸ + 3⁸ + 3¹⁴ + 9 + 7⁶ + 2⁹ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3847 + ... + 5297.

Almost surely, 2^6633972 is an apocalyptic number.

It is an amenable number.

6633972 is an abundant number, since it is smaller than the sum of its proper divisors (10278924).

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

6633972 is a wasteful number, since it uses less digits than its factorization.

6633972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588 (or 1583 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 6633972 is about 2575.6498209190. The cubic root of 6633972 is about 187.8990328524.

Subtracting from 6633972 its reverse (2793366), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 6633972 in words is "six million, six hundred thirty-three thousand, nine hundred seventy-two".