955861 has 4 divisors (see below), whose sum is σ = 961324. Its totient is φ = 950400.

The previous prime is 955853. The next prime is 955879. The reversal of 955861 is 168559.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53361 + 902500 = 231^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 955861 - 2³ = 955853 is a prime.

It is a Duffinian number.

955861 is a lucky number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2460 + ... + 2821.

It is an arithmetic number, because the mean of its divisors is an integer number (240331).

2⁹⁵⁵⁸⁶¹ is an apocalyptic number.

It is an amenable number.

955861 is a deficient number, since it is larger than the sum of its proper divisors (5463).

955861 is a wasteful number, since it uses less digits than its factorization.

955861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462.

The product of its digits is 10800, while the sum is 34.

The square root of 955861 is about 977.6814409612. The cubic root of 955861 is about 98.5065057931.

The spelling of 955861 in words is "nine hundred fifty-five thousand, eight hundred sixty-one".