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425471 is a prime number
BaseRepresentation
bin1100111110111111111
3210121122012
41213313333
5102103341
613041435
73421304
oct1476777
9717565
10425471
11270732
1218627b
1311b877
14b10ab
15860eb
hex67dff

425471 has 2 divisors, whose sum is σ = 425472. Its totient is φ = 425470.

The previous prime is 425443. The next prime is 425473. The reversal of 425471 is 174524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425471 - 218 = 163327 is a prime.

It is a super-3 number, since 3×4254713 = 231063393230286333, which contains 333 as substring.

It is a Sophie Germain prime.

Together with 425473, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p35816 and since 425471 and 35816 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212735 + 212736.

It is an arithmetic number, because the mean of its divisors is an integer number (212736).

2425471 is an apocalyptic number.

425471 is a deficient number, since it is larger than the sum of its proper divisors (1).

425471 is an equidigital number, since it uses as much as digits as its factorization.

425471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120, while the sum is 23.

The square root of 425471 is about 652.2813810006. The cubic root of 425471 is about 75.2124936802.

Adding to 425471 its reverse (174524), we get a palindrome (599995).

The spelling of 425471 in words is "four hundred twenty-five thousand, four hundred seventy-one".