20623077 has 12 divisors (see below), whose sum is σ = 29839680. Its totient is φ = 13725288.

The previous prime is 20623067. The next prime is 20623079. The reversal of 20623077 is 77032602.

It is not a de Polignac number, because 20623077 - 2⁴ = 20623061 is a prime.

It is a super-2 number, since 2×20623077² = 850622609895858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20623077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4878 + ... + 8064.

It is an arithmetic number, because the mean of its divisors is an integer number (2486640).

Almost surely, 2^20623077 is an apocalyptic number.

It is an amenable number.

20623077 is a deficient number, since it is larger than the sum of its proper divisors (9216603).

20623077 is a wasteful number, since it uses less digits than its factorization.

20623077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912 (or 3909 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 20623077 is about 4541.2638108791. The cubic root of 20623077 is about 274.2318042998.

Adding to 20623077 its reverse (77032602), we get a palindrome (97655679).

The spelling of 20623077 in words is "twenty million, six hundred twenty-three thousand, seventy-seven".