20795271 has 16 divisors (see below), whose sum is σ = 31868928. Its totient is φ = 11815200.

The previous prime is 20795251. The next prime is 20795279. The reversal of 20795271 is 17259702.

20795271 = T₃₈₆ + T₃₈₇ + ... + T₅₆₆.

It is not a de Polignac number, because 20795271 - 2⁷ = 20795143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20795279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066 + ... + 6536.

It is an arithmetic number, because the mean of its divisors is an integer number (1991808).

Almost surely, 2^20795271 is an apocalyptic number.

20795271 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20795271 is a deficient number, since it is larger than the sum of its proper divisors (11073657).

20795271 is a wasteful number, since it uses less digits than its factorization.

20795271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 20795271 is about 4560.1832200033. The cubic root of 20795271 is about 274.9929298458.

The spelling of 20795271 in words is "twenty million, seven hundred ninety-five thousand, two hundred seventy-one".