435645 has 32 divisors (see below), whose sum is σ = 887040. Its totient is φ = 198720.

The previous prime is 435641. The next prime is 435647. The reversal of 435645 is 546534.

It is not a de Polignac number, because 435645 - 2² = 435641 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (435641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 715 + ... + 1175.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2⁴³⁵⁶⁴⁵ is an apocalyptic number.

435645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

435645 is an abundant number, since it is smaller than the sum of its proper divisors (451395).

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

435645 is a wasteful number, since it uses less digits than its factorization.

435645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 476 counting only the distinct ones).

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

The square root of 435645 is about 660.0340900287. The cubic root of 435645 is about 75.8072794878.

Subtracting 435645 from its reverse (546534), we obtain a square (110889 = 333²).

The spelling of 435645 in words is "four hundred thirty-five thousand, six hundred forty-five".