20493827 has 8 divisors (see below), whose sum is σ = 20978880. Its totient is φ = 20013480.

The previous prime is 20493791. The next prime is 20493839. The reversal of 20493827 is 72839402.

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 20493827 - 2²² = 16299523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20493877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8552 + ... + 10682.

It is an arithmetic number, because the mean of its divisors is an integer number (2622360).

Almost surely, 2^20493827 is an apocalyptic number.

20493827 is a deficient number, since it is larger than the sum of its proper divisors (485053).

20493827 is a wasteful number, since it uses less digits than its factorization.

20493827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 20493827 is about 4527.0108239323. The cubic root of 20493827 is about 273.6577101099.

The spelling of 20493827 in words is "twenty million, four hundred ninety-three thousand, eight hundred twenty-seven".