20733077 has 4 divisors (see below), whose sum is σ = 20753856. Its totient is φ = 20712300.

The previous prime is 20733073. The next prime is 20733103. The reversal of 20733077 is 77033702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77033702 = 2 ⋅38516851.

It is a cyclic number.

It is not a de Polignac number, because 20733077 - 2² = 20733073 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 (20733073) 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 3 ways as a sum of consecutive naturals, for example, 8813 + ... + 10914.

It is an arithmetic number, because the mean of its divisors is an integer number (5188464).

Almost surely, 2^20733077 is an apocalyptic number.

It is an amenable number.

20733077 is a deficient number, since it is larger than the sum of its proper divisors (20779).

20733077 is a wasteful number, since it uses less digits than its factorization.

20733077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20778.

The product of its (nonzero) digits is 6174, while the sum is 29.

The square root of 20733077 is about 4553.3588701090. The cubic root of 20733077 is about 274.7185086566.

Adding to 20733077 its reverse (77033702), we get a palindrome (97766779).

The spelling of 20733077 in words is "twenty million, seven hundred thirty-three thousand, seventy-seven".