20061789 has 8 divisors (see below), whose sum is σ = 29180832. Its totient is φ = 12158640.

The previous prime is 20061781. The next prime is 20061793. The reversal of 20061789 is 98716002.

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

It is not a de Polignac number, because 20061789 - 2³ = 20061781 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 607933 = 20061789 / (2 + 0 + 0 + 6 + 1 + 7 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20061781) 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, 303934 + ... + 303999.

It is an arithmetic number, because the mean of its divisors is an integer number (3647604).

Almost surely, 2^20061789 is an apocalyptic number.

It is an amenable number.

20061789 is a deficient number, since it is larger than the sum of its proper divisors (9119043).

20061789 is a wasteful number, since it uses less digits than its factorization.

20061789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607947.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 20061789 is about 4479.0388477887. The cubic root of 20061789 is about 271.7210095327.

The spelling of 20061789 in words is "twenty million, sixty-one thousand, seven hundred eighty-nine".