20773669 has 16 divisors (see below), whose sum is σ = 26081280. Its totient is φ = 16133040.

The previous prime is 20773663. The next prime is 20773679. The reversal of 20773669 is 96637702.

It is not a de Polignac number, because 20773669 - 2³ = 20773661 is a prime.

It is a super-2 number, since 2×20773669² = 863090647443122, 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 (20773661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337 + ... + 6454.

It is an arithmetic number, because the mean of its divisors is an integer number (1630080).

Almost surely, 2^20773669 is an apocalyptic number.

It is an amenable number.

20773669 is a deficient number, since it is larger than the sum of its proper divisors (5307611).

20773669 is a wasteful number, since it uses less digits than its factorization.

20773669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 20773669 is about 4557.8140593929. The cubic root of 20773669 is about 274.8976765322.

The spelling of 20773669 in words is "twenty million, seven hundred seventy-three thousand, six hundred sixty-nine".