955609903 has 4 divisors (see below), whose sum is σ = 955675480. Its totient is φ = 955544328.

The previous prime is 955609871. The next prime is 955609913. The reversal of 955609903 is 309906559.

It is a happy number.

955609903 is a nontrivial binomial coefficient, being equal to C(43718, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(955609903) divides (955609903-1)³.

It is a cyclic number.

It is not a de Polignac number, because 955609903 - 2⁵ = 955609871 is a prime.

It is a deceptive number, since it divides R_955609902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (955609913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 43717.

It is an arithmetic number, because the mean of its divisors is an integer number (238918870).

Almost surely, 2^955609903 is an apocalyptic number.

955609903 is the 43717-th triangular number and also the 21859-th hexagonal number.

955609903 is the 14573-rd centered nonagonal number.

955609903 is a deficient number, since it is larger than the sum of its proper divisors (65577).

955609903 is a wasteful number, since it uses less digits than its factorization.

955609903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65576.

The product of its (nonzero) digits is 328050, while the sum is 46.

The square root of 955609903 is about 30912.9407045011. The cubic root of 955609903 is about 984.9787941530.

The spelling of 955609903 in words is "nine hundred fifty-five million, six hundred nine thousand, nine hundred three".