20047061 has 8 divisors (see below), whose sum is σ = 20328000. Its totient is φ = 19768320.

The previous prime is 20047037. The next prime is 20047121. The reversal of 20047061 is 16074002.

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 20047061 - 2²² = 15852757 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 (20047361) 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, 25685 + ... + 26453.

It is an arithmetic number, because the mean of its divisors is an integer number (2541000).

Almost surely, 2^20047061 is an apocalyptic number.

It is an amenable number.

20047061 is a deficient number, since it is larger than the sum of its proper divisors (280939).

20047061 is a wasteful number, since it uses less digits than its factorization.

20047061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20047061 is about 4477.3944432002. The cubic root of 20047061 is about 271.6545002309.

The spelling of 20047061 in words is "twenty million, forty-seven thousand, sixty-one".