20754097 has 24 divisors (see below), whose sum is σ = 26863872. Its totient is φ = 15876000.

The previous prime is 20754089. The next prime is 20754101. The reversal of 20754097 is 79045702.

It is not a de Polignac number, because 20754097 - 2³ = 20754089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20754007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19222 + ... + 20272.

It is an arithmetic number, because the mean of its divisors is an integer number (1119328).

Almost surely, 2^20754097 is an apocalyptic number.

It is an amenable number.

20754097 is a deficient number, since it is larger than the sum of its proper divisors (6109775).

20754097 is a wasteful number, since it uses less digits than its factorization.

20754097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 20754097 is about 4555.6664715495. Note that the first 3 decimals coincide. The cubic root of 20754097 is about 274.8113174029.

Adding to 20754097 its reverse (79045702), we get a palindrome (99799799).

The spelling of 20754097 in words is "twenty million, seven hundred fifty-four thousand, ninety-seven".