20496863 has 2 divisors, whose sum is σ = 20496864. Its totient is φ = 20496862.

The previous prime is 20496857. The next prime is 20496899. The reversal of 20496863 is 36869402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20496863 - 2⁸ = 20496607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20496803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10248431 + 10248432.

It is an arithmetic number, because the mean of its divisors is an integer number (10248432).

Almost surely, 2^20496863 is an apocalyptic number.

20496863 is a deficient number, since it is larger than the sum of its proper divisors (1).

20496863 is an equidigital number, since it uses as much as digits as its factorization.

20496863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 20496863 is about 4527.3461321176. The cubic root of 20496863 is about 273.6712228583.

The spelling of 20496863 in words is "twenty million, four hundred ninety-six thousand, eight hundred sixty-three".