955831 has 4 divisors (see below), whose sum is σ = 964872. Its totient is φ = 946792.

The previous prime is 955819. The next prime is 955841. The reversal of 955831 is 138559.

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

It is a cyclic number.

It is not a de Polignac number, because 955831 - 2⁹ = 955319 is a prime.

It is a super-2 number, since 2×955831² = 1827225801122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 955793 and 955802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (955841) 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, 4360 + ... + 4573.

It is an arithmetic number, because the mean of its divisors is an integer number (241218).

2⁹⁵⁵⁸³¹ is an apocalyptic number.

955831 is a deficient number, since it is larger than the sum of its proper divisors (9041).

955831 is a wasteful number, since it uses less digits than its factorization.

955831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040.

The product of its digits is 5400, while the sum is 31.

The square root of 955831 is about 977.6660984201. Note that the first 3 decimals coincide. The cubic root of 955831 is about 98.5054752297.

The spelling of 955831 in words is "nine hundred fifty-five thousand, eight hundred thirty-one".