20768283 has 12 divisors (see below), whose sum is σ = 30072120. Its totient is φ = 13811616.

The previous prime is 20768249. The next prime is 20768291. The reversal of 20768283 is 38286702.

It is a happy number.

It is not a de Polignac number, because 20768283 - 2¹² = 20764187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20763283) 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, 1383 + ... + 6591.

It is an arithmetic number, because the mean of its divisors is an integer number (2506010).

Almost surely, 2^20768283 is an apocalyptic number.

20768283 is a deficient number, since it is larger than the sum of its proper divisors (9303837).

20768283 is a wasteful number, since it uses less digits than its factorization.

20768283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658 (or 5655 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 20768283 is about 4557.2231676757. The cubic root of 20768283 is about 274.8739168574.

The spelling of 20768283 in words is "twenty million, seven hundred sixty-eight thousand, two hundred eighty-three".