20046705 has 16 divisors (see below), whose sum is σ = 36657024. Its totient is φ = 9164160.

The previous prime is 20046703. The next prime is 20046707. The reversal of 20046705 is 50764002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20046703) and next prime (20046707).

It is not a de Polignac number, because 20046705 - 2¹ = 20046703 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20046701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95356 + ... + 95565.

It is an arithmetic number, because the mean of its divisors is an integer number (2291064).

Almost surely, 2^20046705 is an apocalyptic number.

It is an amenable number.

20046705 is a deficient number, since it is larger than the sum of its proper divisors (16610319).

20046705 is a wasteful number, since it uses less digits than its factorization.

20046705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190936.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20046705 is about 4477.3546877593. The cubic root of 20046705 is about 271.6528921885.

The spelling of 20046705 in words is "twenty million, forty-six thousand, seven hundred five".