20620193 has 8 divisors (see below), whose sum is σ = 22528800. Its totient is φ = 18717280.

The previous prime is 20620183. The next prime is 20620217. The reversal of 20620193 is 39102602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20620193 - 2⁶ = 20620129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20620123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10646 + ... + 12432.

It is an arithmetic number, because the mean of its divisors is an integer number (2816100).

Almost surely, 2^20620193 is an apocalyptic number.

It is an amenable number.

20620193 is a deficient number, since it is larger than the sum of its proper divisors (1908607).

20620193 is a wasteful number, since it uses less digits than its factorization.

20620193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 20620193 is about 4540.9462670241. The cubic root of 20620193 is about 274.2190205399.

Adding to 20620193 its reverse (39102602), we get a palindrome (59722795).

The spelling of 20620193 in words is "twenty million, six hundred twenty thousand, one hundred ninety-three".