5435661 has 16 divisors (see below), whose sum is σ = 9036288. Its totient is φ = 2823600.

The previous prime is 5435641. The next prime is 5435663. The reversal of 5435661 is 1665345.

It is not a de Polignac number, because 5435661 - 2⁵ = 5435629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5435663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11535 + ... + 11996.

It is an arithmetic number, because the mean of its divisors is an integer number (564768).

Almost surely, 2^5435661 is an apocalyptic number.

It is an amenable number.

5435661 is a deficient number, since it is larger than the sum of its proper divisors (3600627).

5435661 is a wasteful number, since it uses less digits than its factorization.

5435661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23552.

The product of its digits is 10800, while the sum is 30.

The square root of 5435661 is about 2331.4504069356. The cubic root of 5435661 is about 175.8264150274.

The spelling of 5435661 in words is "five million, four hundred thirty-five thousand, six hundred sixty-one".