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1000423 is a prime number
BaseRepresentation
bin11110100001111100111
31212211022201
43310033213
5224003143
633235331
711334454
oct3641747
91784281
101000423
116236a6
12402b47
13290488
141c082b
1514b64d
hexf43e7

1000423 has 2 divisors, whose sum is σ = 1000424. Its totient is φ = 1000422.

The previous prime is 1000409. The next prime is 1000427. The reversal of 1000423 is 3240001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000423 - 213 = 992231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500211 + 500212.

It is an arithmetic number, because the mean of its divisors is an integer number (500212).

21000423 is an apocalyptic number.

1000423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000423 is an equidigital number, since it uses as much as digits as its factorization.

1000423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1000423 is about 1000.2114776386. The cubic root of 1000423 is about 100.0140980124.

Adding to 1000423 its reverse (3240001), we get a palindrome (4240424).

The spelling of 1000423 in words is "one million, four hundred twenty-three", and thus it is an aban number.