20922093 has 12 divisors (see below), whose sum is σ = 30283708. Its totient is φ = 13919040.

The previous prime is 20922091. The next prime is 20922103. The reversal of 20922093 is 39022902.

It can be written as a sum of positive squares in 2 ways, for example, as 9753129 + 11168964 = 3123^2 + 3342^2 .

It is not a de Polignac number, because 20922093 - 2¹ = 20922091 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 (20922091) 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, 2721 + ... + 7017.

Almost surely, 2^20922093 is an apocalyptic number.

It is an amenable number.

20922093 is a deficient number, since it is larger than the sum of its proper divisors (9361615).

20922093 is a wasteful number, since it uses less digits than its factorization.

20922093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844 (or 4841 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 20922093 is about 4574.0674459391. The cubic root of 20922093 is about 275.5508210456.

Adding to 20922093 its reverse (39022902), we get a palindrome (59944995).

The spelling of 20922093 in words is "twenty million, nine hundred twenty-two thousand, ninety-three".