20047073 has 16 divisors (see below), whose sum is σ = 21422016. Its totient is φ = 18735360.

The previous prime is 20047037. The next prime is 20047121. The reversal of 20047073 is 37074002.

It is not a de Polignac number, because 20047073 - 2⁶ = 20047009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20047273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146261 + ... + 146397.

It is an arithmetic number, because the mean of its divisors is an integer number (1338876).

Almost surely, 2^20047073 is an apocalyptic number.

It is an amenable number.

20047073 is a deficient number, since it is larger than the sum of its proper divisors (1374943).

20047073 is a wasteful number, since it uses less digits than its factorization.

20047073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 20047073 is about 4477.3957832651. The cubic root of 20047073 is about 271.6545544342.

The spelling of 20047073 in words is "twenty million, forty-seven thousand, seventy-three".