906543 has 12 divisors (see below), whose sum is σ = 1428648. Its totient is φ = 549360.

The previous prime is 906541. The next prime is 906557. The reversal of 906543 is 345609.

It is a happy number.

906543 is a `hidden beast` number, since 9 + 0 + 654 + 3 = 666.

It is not a de Polignac number, because 906543 - 2¹ = 906541 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906541) 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 in 11 ways as a sum of consecutive naturals, for example, 4480 + ... + 4677.

It is an arithmetic number, because the mean of its divisors is an integer number (119054).

2⁹⁰⁶⁵⁴³ is an apocalyptic number.

906543 is a deficient number, since it is larger than the sum of its proper divisors (522105).

906543 is a wasteful number, since it uses less digits than its factorization.

906543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9174 (or 9171 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 906543 is about 952.1255169357. The cubic root of 906543 is about 96.7823440125.

The spelling of 906543 in words is "nine hundred six thousand, five hundred forty-three".