20764211 has 8 divisors (see below), whose sum is σ = 22397760. Its totient is φ = 19135872.

The previous prime is 20764189. The next prime is 20764213. The reversal of 20764211 is 11246702.

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 20764211 - 2¹⁴ = 20747827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20764213) 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, 12326 + ... + 13908.

It is an arithmetic number, because the mean of its divisors is an integer number (2799720).

Almost surely, 2^20764211 is an apocalyptic number.

20764211 is a deficient number, since it is larger than the sum of its proper divisors (1633549).

20764211 is a wasteful number, since it uses less digits than its factorization.

20764211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 20764211 is about 4556.7763824880. The cubic root of 20764211 is about 274.8559510045.

The spelling of 20764211 in words is "twenty million, seven hundred sixty-four thousand, two hundred eleven".