20764093 has 12 divisors (see below), whose sum is σ = 25426560. Its totient is φ = 16860312.

The previous prime is 20764091. The next prime is 20764097. The reversal of 20764093 is 39046702.

It is not a de Polignac number, because 20764093 - 2¹ = 20764091 is a prime.

It is a super-2 number, since 2×20764093² = 862295116225298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20764091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10221 + ... + 12082.

It is an arithmetic number, because the mean of its divisors is an integer number (2118880).

Almost surely, 2^20764093 is an apocalyptic number.

It is an amenable number.

20764093 is a deficient number, since it is larger than the sum of its proper divisors (4662467).

20764093 is a wasteful number, since it uses less digits than its factorization.

20764093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22336 (or 22329 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 20764093 is about 4556.7634347199. The cubic root of 20764093 is about 274.8554303480.

The spelling of 20764093 in words is "twenty million, seven hundred sixty-four thousand, ninety-three".