955421 has 4 divisors (see below), whose sum is σ = 963072. Its totient is φ = 947772.

The previous prime is 955391. The next prime is 955433. The reversal of 955421 is 124559.

955421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-955421 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (955441) 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, 3635 + ... + 3888.

It is an arithmetic number, because the mean of its divisors is an integer number (240768).

2⁹⁵⁵⁴²¹ is an apocalyptic number.

It is an amenable number.

955421 is a deficient number, since it is larger than the sum of its proper divisors (7651).

955421 is a wasteful number, since it uses less digits than its factorization.

955421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650.

The product of its digits is 1800, while the sum is 26.

The square root of 955421 is about 977.4563928892. The cubic root of 955421 is about 98.4913887015.

The spelling of 955421 in words is "nine hundred fifty-five thousand, four hundred twenty-one".