20446799 has 2 divisors, whose sum is σ = 20446800. Its totient is φ = 20446798.

The previous prime is 20446729. The next prime is 20446813. The reversal of 20446799 is 99764402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20446799 - 2²⁴ = 3669583 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20446709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10223399 + 10223400.

It is an arithmetic number, because the mean of its divisors is an integer number (10223400).

Almost surely, 2^20446799 is an apocalyptic number.

20446799 is a deficient number, since it is larger than the sum of its proper divisors (1).

20446799 is an equidigital number, since it uses as much as digits as its factorization.

20446799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 20446799 is about 4521.8136847951. The cubic root of 20446799 is about 273.4482253796.

The spelling of 20446799 in words is "twenty million, four hundred forty-six thousand, seven hundred ninety-nine".