20084447 has 2 divisors, whose sum is σ = 20084448. Its totient is φ = 20084446.

The previous prime is 20084437. The next prime is 20084461. The reversal of 20084447 is 74448002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20084447 - 2⁴ = 20084431 is a prime.

It is a super-2 number, since 2×20084447² = 806770022591618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20084437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10042223 + 10042224.

It is an arithmetic number, because the mean of its divisors is an integer number (10042224).

Almost surely, 2^20084447 is an apocalyptic number.

20084447 is a deficient number, since it is larger than the sum of its proper divisors (1).

20084447 is an equidigital number, since it uses as much as digits as its factorization.

20084447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 20084447 is about 4481.5674713207. The cubic root of 20084447 is about 271.8232659215.

The spelling of 20084447 in words is "twenty million, eighty-four thousand, four hundred forty-seven".