20262863 has 2 divisors, whose sum is σ = 20262864. Its totient is φ = 20262862.

The previous prime is 20262857. The next prime is 20262883. The reversal of 20262863 is 36826202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20262863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20262833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10131431 + 10131432.

It is an arithmetic number, because the mean of its divisors is an integer number (10131432).

Almost surely, 2^20262863 is an apocalyptic number.

20262863 is a deficient number, since it is larger than the sum of its proper divisors (1).

20262863 is an equidigital number, since it uses as much as digits as its factorization.

20262863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 20262863 is about 4501.4289953303. The cubic root of 20262863 is about 272.6257893566.

The spelling of 20262863 in words is "twenty million, two hundred sixty-two thousand, eight hundred sixty-three".