435561 has 12 divisors (see below), whose sum is σ = 675792. Its totient is φ = 248808.

The previous prime is 435559. The next prime is 435563. The reversal of 435561 is 165534.

It is an interprime number because it is at equal distance from previous prime (435559) and next prime (435563).

It is not a de Polignac number, because 435561 - 2¹ = 435559 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (435563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1335 + ... + 1628.

It is an arithmetic number, because the mean of its divisors is an integer number (56316).

2⁴³⁵⁵⁶¹ is an apocalyptic number.

It is an amenable number.

435561 is a deficient number, since it is larger than the sum of its proper divisors (240231).

435561 is a wasteful number, since it uses less digits than its factorization.

435561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980 (or 2973 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 435561 is about 659.9704538841. The cubic root of 435561 is about 75.8024068501.

The spelling of 435561 in words is "four hundred thirty-five thousand, five hundred sixty-one".