20483591 has 8 divisors (see below), whose sum is σ = 21196800. Its totient is φ = 19773720.

The previous prime is 20483579. The next prime is 20483597. The reversal of 20483591 is 19538402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20483591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20483597) 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, 21830 + ... + 22748.

It is an arithmetic number, because the mean of its divisors is an integer number (2649600).

Almost surely, 2^20483591 is an apocalyptic number.

20483591 is a deficient number, since it is larger than the sum of its proper divisors (713209).

20483591 is an equidigital number, since it uses as much as digits as its factorization.

20483591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 20483591 is about 4525.8801353991. The cubic root of 20483591 is about 273.6121414807.

The spelling of 20483591 in words is "twenty million, four hundred eighty-three thousand, five hundred ninety-one".