20038471 has 2 divisors, whose sum is σ = 20038472. Its totient is φ = 20038470.

The previous prime is 20038453. The next prime is 20038481. The reversal of 20038471 is 17483002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20038471 - 2⁹ = 20037959 is a prime.

It is a super-3 number, since 3×20038471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20038411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10019235 + 10019236.

It is an arithmetic number, because the mean of its divisors is an integer number (10019236).

Almost surely, 2^20038471 is an apocalyptic number.

20038471 is a deficient number, since it is larger than the sum of its proper divisors (1).

20038471 is an equidigital number, since it uses as much as digits as its factorization.

20038471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20038471 is about 4476.4350771568. The cubic root of 20038471 is about 271.6156941181.

The spelling of 20038471 in words is "twenty million, thirty-eight thousand, four hundred seventy-one".