20632773 has 24 divisors (see below), whose sum is σ = 32354112. Its totient is φ = 11660544.

The previous prime is 20632753. The next prime is 20632811. The reversal of 20632773 is 37723602.

It is not a de Polignac number, because 20632773 - 2⁶ = 20632709 is a prime.

It is a super-2 number, since 2×20632773² = 851422643339058, 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 20632773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20632753) 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 23 ways as a sum of consecutive naturals, for example, 13536 + ... + 14982.

It is an arithmetic number, because the mean of its divisors is an integer number (1348088).

Almost surely, 2^20632773 is an apocalyptic number.

It is an amenable number.

20632773 is a deficient number, since it is larger than the sum of its proper divisors (11721339).

20632773 is a wasteful number, since it uses less digits than its factorization.

20632773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 20632773 is about 4542.3312296661. The cubic root of 20632773 is about 274.2747745280.

The spelling of 20632773 in words is "twenty million, six hundred thirty-two thousand, seven hundred seventy-three".