20498271 has 8 divisors (see below), whose sum is σ = 27375024. Its totient is φ = 13643520.

The previous prime is 20498263. The next prime is 20498279. The reversal of 20498271 is 17289402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20498263) and next prime (20498279).

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

It is not a de Polignac number, because 20498271 - 2³ = 20498263 is a prime.

It is a super-2 number, since 2×20498271² = 840358227978882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20498279) 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, 3186 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (3421878).

Almost surely, 2^20498271 is an apocalyptic number.

20498271 is a deficient number, since it is larger than the sum of its proper divisors (6876753).

20498271 is a wasteful number, since it uses less digits than its factorization.

20498271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 20498271 is about 4527.5016289340. The cubic root of 20498271 is about 273.6774891873.

The spelling of 20498271 in words is "twenty million, four hundred ninety-eight thousand, two hundred seventy-one".