20735693 has 8 divisors (see below), whose sum is σ = 22704096. Its totient is φ = 18781200.

The previous prime is 20735681. The next prime is 20735711. The reversal of 20735693 is 39653702.

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 20735693 - 2⁴ = 20735677 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 (20735623) 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, 218 + ... + 6443.

It is an arithmetic number, because the mean of its divisors is an integer number (2838012).

Almost surely, 2^20735693 is an apocalyptic number.

It is an amenable number.

20735693 is a deficient number, since it is larger than the sum of its proper divisors (1968403).

20735693 is a wasteful number, since it uses less digits than its factorization.

20735693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 20735693 is about 4553.6461215163. The cubic root of 20735693 is about 274.7300623910.

The spelling of 20735693 in words is "twenty million, seven hundred thirty-five thousand, six hundred ninety-three".