20046911 has 4 divisors (see below), whose sum is σ = 20179824. Its totient is φ = 19914000.

The previous prime is 20046841. The next prime is 20046913. The reversal of 20046911 is 11964002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20046911 - 2¹⁰ = 20045887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66230 + ... + 66531.

It is an arithmetic number, because the mean of its divisors is an integer number (5044956).

Almost surely, 2^20046911 is an apocalyptic number.

20046911 is a deficient number, since it is larger than the sum of its proper divisors (132913).

20046911 is a wasteful number, since it uses less digits than its factorization.

20046911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132912.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 20046911 is about 4477.3776923552. The cubic root of 20046911 is about 271.6538226872.

The spelling of 20046911 in words is "twenty million, forty-six thousand, nine hundred eleven".