956543 has 4 divisors (see below), whose sum is σ = 1093200. Its totient is φ = 819888.

The previous prime is 956521. The next prime is 956569. The reversal of 956543 is 345659.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-956543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (956503) 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 3 ways as a sum of consecutive naturals, for example, 68318 + ... + 68331.

It is an arithmetic number, because the mean of its divisors is an integer number (273300).

2⁹⁵⁶⁵⁴³ is an apocalyptic number.

956543 is a deficient number, since it is larger than the sum of its proper divisors (136657).

956543 is a wasteful number, since it uses less digits than its factorization.

956543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136656.

The product of its digits is 16200, while the sum is 32.

The square root of 956543 is about 978.0301631340. The cubic root of 956543 is about 98.5299281196.

The spelling of 956543 in words is "nine hundred fifty-six thousand, five hundred forty-three".