20046659 has 2 divisors, whose sum is σ = 20046660. Its totient is φ = 20046658.

The previous prime is 20046619. The next prime is 20046671. The reversal of 20046659 is 95664002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20046659 - 2²⁴ = 3269443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20046619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10023329 + 10023330.

It is an arithmetic number, because the mean of its divisors is an integer number (10023330).

Almost surely, 2^20046659 is an apocalyptic number.

20046659 is a deficient number, since it is larger than the sum of its proper divisors (1).

20046659 is an equidigital number, since it uses as much as digits as its factorization.

20046659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 20046659 is about 4477.3495507945. The cubic root of 20046659 is about 271.6526844063.

The spelling of 20046659 in words is "twenty million, forty-six thousand, six hundred fifty-nine".