4395561 has 4 divisors (see below), whose sum is σ = 5860752. Its totient is φ = 2930372.

The previous prime is 4395557. The next prime is 4395613. The reversal of 4395561 is 1655934.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4395561 - 2² = 4395557 is a prime.

It is a D-number.

4395561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4395511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732591 + ... + 732596.

It is an arithmetic number, because the mean of its divisors is an integer number (1465188).

Almost surely, 2^4395561 is an apocalyptic number.

It is an amenable number.

4395561 is a deficient number, since it is larger than the sum of its proper divisors (1465191).

4395561 is a wasteful number, since it uses less digits than its factorization.

4395561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465190.

The product of its digits is 16200, while the sum is 33.

The square root of 4395561 is about 2096.5593242262. The cubic root of 4395561 is about 163.8091300160.

The spelling of 4395561 in words is "four million, three hundred ninety-five thousand, five hundred sixty-one".