20727077 has 8 divisors (see below), whose sum is σ = 23910336. Its totient is φ = 17599392.

The previous prime is 20727073. The next prime is 20727089. The reversal of 20727077 is 77072702.

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 20727077 - 2² = 20727073 is a prime.

It is a super-2 number, since 2×20727077² = 859223441927858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20727073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13088 + ... + 14585.

It is an arithmetic number, because the mean of its divisors is an integer number (2988792).

Almost surely, 2^20727077 is an apocalyptic number.

It is an amenable number.

20727077 is a deficient number, since it is larger than the sum of its proper divisors (3183259).

20727077 is a wasteful number, since it uses less digits than its factorization.

20727077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27787.

The product of its (nonzero) digits is 9604, while the sum is 32.

The square root of 20727077 is about 4552.6999681508. The cubic root of 20727077 is about 274.6920055945.

Adding to 20727077 its reverse (77072702), we get a palindrome (97799779).

The spelling of 20727077 in words is "twenty million, seven hundred twenty-seven thousand, seventy-seven".