20020693 has 8 divisors (see below), whose sum is σ = 24960960. Its totient is φ = 15600480.

The previous prime is 20020691. The next prime is 20020711. The reversal of 20020693 is 39602002.

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

It is not a de Polignac number, because 20020693 - 2¹ = 20020691 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 (20020691) 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, 129928 + ... + 130081.

It is an arithmetic number, because the mean of its divisors is an integer number (3120120).

Almost surely, 2^20020693 is an apocalyptic number.

It is an amenable number.

20020693 is a deficient number, since it is larger than the sum of its proper divisors (4940267).

20020693 is a wasteful number, since it uses less digits than its factorization.

20020693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260027.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20020693 is about 4474.4489046138. The cubic root of 20020693 is about 271.5353451311.

Adding to 20020693 its reverse (39602002), we get a palindrome (59622695).

The spelling of 20020693 in words is "twenty million, twenty thousand, six hundred ninety-three".