20650329 has 32 divisors (see below), whose sum is σ = 35920640. Its totient is φ = 11477376.

The previous prime is 20650319. The next prime is 20650339. The reversal of 20650329 is 92305602.

20650329 is a `hidden beast` number, since 2 + 0 + 650 + 3 + 2 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (20650319) and next prime (20650339).

It is not a de Polignac number, because 20650329 - 2⁹ = 20649817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20650319) 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 31 ways as a sum of consecutive naturals, for example, 5517 + ... + 8469.

It is an arithmetic number, because the mean of its divisors is an integer number (1122520).

Almost surely, 2^20650329 is an apocalyptic number.

It is an amenable number.

20650329 is a deficient number, since it is larger than the sum of its proper divisors (15270311).

20650329 is a wasteful number, since it uses less digits than its factorization.

20650329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20650329 is about 4544.2633066318. The cubic root of 20650329 is about 274.3525440532.

The spelling of 20650329 in words is "twenty million, six hundred fifty thousand, three hundred twenty-nine".