20723027 has 8 divisors (see below), whose sum is σ = 22569120. Its totient is φ = 18912960.

The previous prime is 20722993. The next prime is 20723029. The reversal of 20723027 is 72032702.

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 20723027 - 2⁶ = 20722963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20722993 and 20723011.

It is not an unprimeable number, because it can be changed into a prime (20723029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7799 + ... + 10112.

It is an arithmetic number, because the mean of its divisors is an integer number (2821140).

Almost surely, 2^20723027 is an apocalyptic number.

20723027 is a deficient number, since it is larger than the sum of its proper divisors (1846093).

20723027 is a wasteful number, since it uses less digits than its factorization.

20723027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18013.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 20723027 is about 4552.2551554147. The cubic root of 20723027 is about 274.6741131361.

Adding to 20723027 its reverse (72032702), we get a palindrome (92755729).

The spelling of 20723027 in words is "twenty million, seven hundred twenty-three thousand, twenty-seven".