4361661 has 8 divisors (see below), whose sum is σ = 6461760. Its totient is φ = 2907756.

The previous prime is 4361653. The next prime is 4361663. The reversal of 4361661 is 1661634.

4361661 is a `hidden beast` number, since 43 + 616 + 6 + 1 = 666.

4361661 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4361661 - 2³ = 4361653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 161543 = 4361661 / (4 + 3 + 6 + 1 + 6 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4361663) 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, 80745 + ... + 80798.

It is an arithmetic number, because the mean of its divisors is an integer number (807720).

Almost surely, 2^4361661 is an apocalyptic number.

It is an amenable number.

4361661 is a deficient number, since it is larger than the sum of its proper divisors (2100099).

4361661 is a wasteful number, since it uses less digits than its factorization.

4361661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161552 (or 161546 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 4361661 is about 2088.4590012734. The cubic root of 4361661 is about 163.3869262791.

Subtracting from 4361661 its sum of digits (27), we obtain a palindrome (4361634).

The spelling of 4361661 in words is "four million, three hundred sixty-one thousand, six hundred sixty-one".