20589417 has 8 divisors (see below), whose sum is σ = 30502880. Its totient is φ = 13726260.

The previous prime is 20589409. The next prime is 20589419. The reversal of 20589417 is 71498502.

It is not a de Polignac number, because 20589417 - 2³ = 20589409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20589419) 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 7 ways as a sum of consecutive naturals, for example, 381259 + ... + 381312.

It is an arithmetic number, because the mean of its divisors is an integer number (3812860).

Almost surely, 2^20589417 is an apocalyptic number.

20589417 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20589417 is a deficient number, since it is larger than the sum of its proper divisors (9913463).

20589417 is an equidigital number, since it uses as much as digits as its factorization.

20589417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762580 (or 762574 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 20589417 is about 4537.5562806427. The cubic root of 20589417 is about 274.0825270438.

The spelling of 20589417 in words is "twenty million, five hundred eighty-nine thousand, four hundred seventeen".