4035561 has 8 divisors (see below), whose sum is σ = 5495424. Its totient is φ = 2633040.

The previous prime is 4035547. The next prime is 4035599. The reversal of 4035561 is 1655304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4035561 - 2⁶ = 4035497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4035761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14170 + ... + 14451.

It is an arithmetic number, because the mean of its divisors is an integer number (686928).

Almost surely, 2^4035561 is an apocalyptic number.

It is an amenable number.

4035561 is a deficient number, since it is larger than the sum of its proper divisors (1459863).

4035561 is a wasteful number, since it uses less digits than its factorization.

4035561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28671.

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

The square root of 4035561 is about 2008.8705782106. The cubic root of 4035561 is about 159.2091310849.

The spelling of 4035561 in words is "four million, thirty-five thousand, five hundred sixty-one".