955489921 has 3 divisors (see below), whose sum is σ = 955520833. Its totient is φ = 955459010.

The previous prime is 955489901. The next prime is 955489949. The reversal of 955489921 is 129984559.

The square root of 955489921 is 30911.

It is a perfect power (a square), and thus also a powerful number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 129984559 = 97 ⋅1340047.

It is not a de Polignac number, because 955489921 - 2⁵ = 955489889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (955489901) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15456 + ... + 46366.

Almost surely, 2^955489921 is an apocalyptic number.

955489921 is the 30911-st square number.

955489921 is the 15456-th centered octagonal number.

It is an amenable number.

955489921 is a deficient number, since it is larger than the sum of its proper divisors (30912).

955489921 is an frugal number, since it uses more digits than its factorization.

955489921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61822 (or 30911 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 52.

The cubic root of 955489921 is about 984.9375692865.

The spelling of 955489921 in words is "nine hundred fifty-five million, four hundred eighty-nine thousand, nine hundred twenty-one".