635445 has 24 divisors (see below), whose sum is σ = 1144416. Its totient is φ = 338256.

The previous prime is 635441. The next prime is 635449. The reversal of 635445 is 544536.

635445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (635441) and next prime (635449).

It is not a de Polignac number, because 635445 - 2² = 635441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 954 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (47684).

2⁶³⁵⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

635445 is a deficient number, since it is larger than the sum of its proper divisors (508971).

635445 is an equidigital number, since it uses as much as digits as its factorization.

635445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 531 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 635445 is about 797.1480414578. The cubic root of 635445 is about 85.9724537701.

Subtracting from 635445 its reverse (544536), we obtain a palindrome (90909).

The spelling of 635445 in words is "six hundred thirty-five thousand, four hundred forty-five".