20534017 has 8 divisors (see below), whose sum is σ = 23534336. Its totient is φ = 17550432.

The previous prime is 20533999. The next prime is 20534029. The reversal of 20534017 is 71043502.

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-20534017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20534077) 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, 1428 + ... + 6565.

It is an arithmetic number, because the mean of its divisors is an integer number (2941792).

Almost surely, 2^20534017 is an apocalyptic number.

It is an amenable number.

20534017 is a deficient number, since it is larger than the sum of its proper divisors (3000319).

20534017 is an equidigital number, since it uses as much as digits as its factorization.

20534017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20534017 is about 4531.4475612104. The cubic root of 20534017 is about 273.8364813676.

Adding to 20534017 its reverse (71043502), we get a palindrome (91577519).

The spelling of 20534017 in words is "twenty million, five hundred thirty-four thousand, seventeen".