20654073 has 12 divisors (see below), whose sum is σ = 32545968. Its totient is φ = 12517560.

The previous prime is 20654063. The next prime is 20654077. The reversal of 20654073 is 37045602.

It is a happy number.

20654073 is a `hidden beast` number, since 2 + 0 + 654 + 0 + 7 + 3 = 666.

It is not a de Polignac number, because 20654073 - 2⁹ = 20653561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20654077) 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, 104215 + ... + 104412.

It is an arithmetic number, because the mean of its divisors is an integer number (2712164).

Almost surely, 2^20654073 is an apocalyptic number.

It is an amenable number.

20654073 is a deficient number, since it is larger than the sum of its proper divisors (11891895).

20654073 is a wasteful number, since it uses less digits than its factorization.

20654073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208644 (or 208641 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20654073 is about 4544.6752359217. The cubic root of 20654073 is about 274.3691235123.

Adding to 20654073 its reverse (37045602), we get a palindrome (57699675).

The spelling of 20654073 in words is "twenty million, six hundred fifty-four thousand, seventy-three".