20047006 has 8 divisors (see below), whose sum is σ = 34366320. Its totient is φ = 8591568.

The previous prime is 20046959. The next prime is 20047009. The reversal of 20047006 is 60074002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20047009) 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 3 ways as a sum of consecutive naturals, for example, 715951 + ... + 715978.

It is an arithmetic number, because the mean of its divisors is an integer number (4295790).

Almost surely, 2^20047006 is an apocalyptic number.

20047006 is a deficient number, since it is larger than the sum of its proper divisors (14319314).

20047006 is a wasteful number, since it uses less digits than its factorization.

20047006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431938.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20047006 is about 4477.3883012310. The cubic root of 20047006 is about 271.6542517986.

The spelling of 20047006 in words is "twenty million, forty-seven thousand, six".