20799763 has 2 divisors, whose sum is σ = 20799764. Its totient is φ = 20799762.

The previous prime is 20799743. The next prime is 20799767. The reversal of 20799763 is 36799702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20799763 - 2⁵ = 20799731 is a prime.

It is not a weakly prime, because it can be changed into another prime (20799767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10399881 + 10399882.

It is an arithmetic number, because the mean of its divisors is an integer number (10399882).

Almost surely, 2^20799763 is an apocalyptic number.

20799763 is a deficient number, since it is larger than the sum of its proper divisors (1).

20799763 is an equidigital number, since it uses as much as digits as its factorization.

20799763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 20799763 is about 4560.6757174787. The cubic root of 20799763 is about 275.0127288874.

The spelling of 20799763 in words is "twenty million, seven hundred ninety-nine thousand, seven hundred sixty-three".