20604061 has 8 divisors (see below), whose sum is σ = 20913984. Its totient is φ = 20296320.

The previous prime is 20604047. The next prime is 20604107. The reversal of 20604061 is 16040602.

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

It is a cyclic number.

It is not a de Polignac number, because 20604061 - 2¹¹ = 20602013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20604011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29826 + ... + 30508.

It is an arithmetic number, because the mean of its divisors is an integer number (2614248).

Almost surely, 2^20604061 is an apocalyptic number.

It is an amenable number.

20604061 is a deficient number, since it is larger than the sum of its proper divisors (309923).

20604061 is an equidigital number, since it uses as much as digits as its factorization.

20604061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20604061 is about 4539.1696377201. The cubic root of 20604061 is about 274.1474910549.

Adding to 20604061 its reverse (16040602), we get a palindrome (36644663).

The spelling of 20604061 in words is "twenty million, six hundred four thousand, sixty-one".