Search a number
-
+
478871 is a prime number
BaseRepresentation
bin1110100111010010111
3220022212222
41310322113
5110310441
614132555
74033061
oct1647227
9808788
10478871
112a7868
121b115b
13139c73
14c6731
1596d4b
hex74e97

478871 has 2 divisors, whose sum is σ = 478872. Its totient is φ = 478870.

The previous prime is 478861. The next prime is 478879. The reversal of 478871 is 178874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478871 - 210 = 477847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239435 + 239436.

It is an arithmetic number, because the mean of its divisors is an integer number (239436).

2478871 is an apocalyptic number.

478871 is a deficient number, since it is larger than the sum of its proper divisors (1).

478871 is an equidigital number, since it uses as much as digits as its factorization.

478871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12544, while the sum is 35.

The square root of 478871 is about 692.0050577850. The cubic root of 478871 is about 78.2359173315.

The spelling of 478871 in words is "four hundred seventy-eight thousand, eight hundred seventy-one".