20196653 has 2 divisors, whose sum is σ = 20196654. Its totient is φ = 20196652.

The previous prime is 20196647. The next prime is 20196679. The reversal of 20196653 is 35669102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20187049 + 9604 = 4493^2 + 98^2 .

It is a cyclic number.

It is not a de Polignac number, because 20196653 - 2¹⁶ = 20131117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20196623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10098326 + 10098327.

It is an arithmetic number, because the mean of its divisors is an integer number (10098327).

Almost surely, 2^20196653 is an apocalyptic number.

It is an amenable number.

20196653 is a deficient number, since it is larger than the sum of its proper divisors (1).

20196653 is an equidigital number, since it uses as much as digits as its factorization.

20196653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 20196653 is about 4494.0686465607. The cubic root of 20196653 is about 272.3285255121.

The spelling of 20196653 in words is "twenty million, one hundred ninety-six thousand, six hundred fifty-three".