636472 has 8 divisors (see below), whose sum is σ = 1193400. Its totient is φ = 318232.

The previous prime is 636469. The next prime is 636473. The reversal of 636472 is 274636.

636472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁵ + 3¹² + 4⁵ + 6⁶ + 7⁵ + 2¹⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 636472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39772 + ... + 39787.

It is an arithmetic number, because the mean of its divisors is an integer number (149175).

2⁶³⁶⁴⁷² is an apocalyptic number.

It is an amenable number.

636472 is a deficient number, since it is larger than the sum of its proper divisors (556928).

636472 is a wasteful number, since it uses less digits than its factorization.

636472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79565 (or 79561 counting only the distinct ones).

The product of its digits is 6048, while the sum is 28.

The square root of 636472 is about 797.7919528298. The cubic root of 636472 is about 86.0187447873.

The spelling of 636472 in words is "six hundred thirty-six thousand, four hundred seventy-two".