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672743 is a prime number
BaseRepresentation
bin10100100001111100111
31021011211102
42210033213
5133011433
622230315
75501231
oct2441747
91234742
10672743
1141a495
1228539b
131a7296
14137251
15d44e8
hexa43e7

672743 has 2 divisors, whose sum is σ = 672744. Its totient is φ = 672742.

The previous prime is 672703. The next prime is 672757. The reversal of 672743 is 347276.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-672743 is a prime.

It is a d-powerful number, because it can be written as 65 + 72 + 74 + 217 + 4 + 312 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672703) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336371 + 336372.

It is an arithmetic number, because the mean of its divisors is an integer number (336372).

2672743 is an apocalyptic number.

672743 is a deficient number, since it is larger than the sum of its proper divisors (1).

672743 is an equidigital number, since it uses as much as digits as its factorization.

672743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 29.

The square root of 672743 is about 820.2091196762. The cubic root of 672743 is about 87.6226524822.

The spelling of 672743 in words is "six hundred seventy-two thousand, seven hundred forty-three".