20900329 has 8 divisors (see below), whose sum is σ = 21672000. Its totient is φ = 20132112.

The previous prime is 20900317. The next prime is 20900339. The reversal of 20900329 is 92300902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20900329 - 2¹¹ = 20898281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20900339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23902 + ... + 24760.

It is an arithmetic number, because the mean of its divisors is an integer number (2709000).

Almost surely, 2^20900329 is an apocalyptic number.

20900329 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

20900329 is a deficient number, since it is larger than the sum of its proper divisors (771671).

20900329 is an equidigital number, since it uses as much as digits as its factorization.

20900329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 20900329 is about 4571.6877627415. The cubic root of 20900329 is about 275.4552415587.

The spelling of 20900329 in words is "twenty million, nine hundred thousand, three hundred twenty-nine".