20004677 has 8 divisors (see below), whose sum is σ = 24940992. Its totient is φ = 15588000.

The previous prime is 20004667. The next prime is 20004683. The reversal of 20004677 is 77640002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20004677 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 (20004667) 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, 129824 + ... + 129977.

It is an arithmetic number, because the mean of its divisors is an integer number (3117624).

Almost surely, 2^20004677 is an apocalyptic number.

It is an amenable number.

20004677 is a deficient number, since it is larger than the sum of its proper divisors (4936315).

20004677 is a wasteful number, since it uses less digits than its factorization.

20004677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259819.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20004677 is about 4472.6588289294. The cubic root of 20004677 is about 271.4629188957.

Adding to 20004677 its reverse (77640002), we get a palindrome (97644679).

The spelling of 20004677 in words is "twenty million, four thousand, six hundred seventy-seven".