20669083 has 8 divisors (see below), whose sum is σ = 21584880. Its totient is φ = 19766880.

The previous prime is 20669081. The next prime is 20669087. The reversal of 20669083 is 38096602.

It is a happy number.

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 20669083 - 2¹ = 20669081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20669081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228 + ... + 6433.

It is an arithmetic number, because the mean of its divisors is an integer number (2698110).

Almost surely, 2^20669083 is an apocalyptic number.

20669083 is a deficient number, since it is larger than the sum of its proper divisors (915797).

20669083 is a wasteful number, since it uses less digits than its factorization.

20669083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6797.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 20669083 is about 4546.3263191284. The cubic root of 20669083 is about 274.4355717994.

The spelling of 20669083 in words is "twenty million, six hundred sixty-nine thousand, eighty-three".