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470021 is a prime number
BaseRepresentation
bin1110010110000000101
3212212202012
41302300011
5110020041
614024005
73665216
oct1626005
9785665
10470021
112a1152
121a8005
13135c26
14c340d
15943eb
hex72c05

470021 has 2 divisors, whose sum is σ = 470022. Its totient is φ = 470020.

The previous prime is 469993. The next prime is 470039. The reversal of 470021 is 120074.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376996 + 93025 = 614^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 470021 - 26 = 469957 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 469978 and 470005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (470081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235010 + 235011.

It is an arithmetic number, because the mean of its divisors is an integer number (235011).

2470021 is an apocalyptic number.

It is an amenable number.

470021 is a deficient number, since it is larger than the sum of its proper divisors (1).

470021 is an equidigital number, since it uses as much as digits as its factorization.

470021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 470021 is about 685.5807756931. The cubic root of 470021 is about 77.7509589319.

Subtracting from 470021 its product of nonzero digits (56), we obtain a triangular number (469965 = T969).

Adding to 470021 its reverse (120074), we get a palindrome (590095).

The spelling of 470021 in words is "four hundred seventy thousand, twenty-one", and thus it is an iban number.