20716023 has 8 divisors (see below), whose sum is σ = 29075200. Its totient is φ = 13083768.

The previous prime is 20716001. The next prime is 20716037. The reversal of 20716023 is 32061702.

It is a happy number.

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

It is not a de Polignac number, because 20716023 - 2¹⁴ = 20699639 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 (20716043) 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, 181663 + ... + 181776.

It is an arithmetic number, because the mean of its divisors is an integer number (3634400).

Almost surely, 2^20716023 is an apocalyptic number.

20716023 is a deficient number, since it is larger than the sum of its proper divisors (8359177).

20716023 is a wasteful number, since it uses less digits than its factorization.

20716023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363461.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 20716023 is about 4551.4858013620. The cubic root of 20716023 is about 274.6431647252.

Adding to 20716023 its reverse (32061702), we get a palindrome (52777725).

The spelling of 20716023 in words is "twenty million, seven hundred sixteen thousand, twenty-three".