4661001 has 12 divisors (see below), whose sum is σ = 6915012. Its totient is φ = 3023136.

The previous prime is 4660993. The next prime is 4661011. The reversal of 4661001 is 1001664.

4661001 is a `hidden beast` number, since 4 + 661 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3326976 + 1334025 = 1824^2 + 1155^2 .

It is not a de Polignac number, because 4661001 - 2³ = 4660993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4661011) 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 11 ways as a sum of consecutive naturals, for example, 6666 + ... + 7331.

It is an arithmetic number, because the mean of its divisors is an integer number (576251).

Almost surely, 2^4661001 is an apocalyptic number.

It is an amenable number.

4661001 is a deficient number, since it is larger than the sum of its proper divisors (2254011).

4661001 is a wasteful number, since it uses less digits than its factorization.

4661001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14040 (or 14037 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 4661001 is about 2158.9351541906. The cubic root of 4661001 is about 167.0422759811.

Adding to 4661001 its reverse (1001664), we get a palindrome (5662665).

The spelling of 4661001 in words is "four million, six hundred sixty-one thousand, one".