20006769 has 8 divisors (see below), whose sum is σ = 26701920. Its totient is φ = 13324736.

The previous prime is 20006743. The next prime is 20006797. The reversal of 20006769 is 96760002.

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 20006769 - 2⁵ = 20006737 is a prime.

It is a super-2 number, since 2×20006769² = 800541611638722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20006869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129 + ... + 6425.

It is an arithmetic number, because the mean of its divisors is an integer number (3337740).

Almost surely, 2^20006769 is an apocalyptic number.

It is an amenable number.

20006769 is a deficient number, since it is larger than the sum of its proper divisors (6695151).

20006769 is a wasteful number, since it uses less digits than its factorization.

20006769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 20006769 is about 4472.8926881829. The cubic root of 20006769 is about 271.4723813601.

The spelling of 20006769 in words is "twenty million, six thousand, seven hundred sixty-nine".