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424729 is a prime number
BaseRepresentation
bin1100111101100011001
3210120121201
41213230121
5102042404
613034201
73416164
oct1475431
9716551
10424729
11270118
12185961
1311b426
14b0adb
1585ca4
hex67b19

424729 has 2 divisors, whose sum is σ = 424730. Its totient is φ = 424728.

The previous prime is 424727. The next prime is 424757. The reversal of 424729 is 927424.

It is an a-pointer prime, because the next prime (424757) can be obtained adding 424729 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409600 + 15129 = 640^2 + 123^2 .

It is a cyclic number.

It is not a de Polignac number, because 424729 - 21 = 424727 is a prime.

Together with 424727, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 424697 and 424706.

It is not a weakly prime, because it can be changed into another prime (424727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212364 + 212365.

It is an arithmetic number, because the mean of its divisors is an integer number (212365).

2424729 is an apocalyptic number.

It is an amenable number.

424729 is a deficient number, since it is larger than the sum of its proper divisors (1).

424729 is an equidigital number, since it uses as much as digits as its factorization.

424729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 424729 is about 651.7123598644. The cubic root of 424729 is about 75.1687459718.

The spelling of 424729 in words is "four hundred twenty-four thousand, seven hundred twenty-nine".