953221 has 2 divisors, whose sum is σ = 953222. Its totient is φ = 953220.

The previous prime is 953191. The next prime is 953237. The reversal of 953221 is 122359.

953221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 12321 = 970^2 + 111^2 .

It is a cyclic number.

It is not a de Polignac number, because 953221 - 2⁷ = 953093 is a prime.

It is a Chen prime.

953221 is a lucky number.

It is equal to p₇₅₁₄₅ and since 953221 and 75145 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 953192 and 953201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (953261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476610 + 476611.

It is an arithmetic number, because the mean of its divisors is an integer number (476611).

2⁹⁵³²²¹ is an apocalyptic number.

It is an amenable number.

953221 is a deficient number, since it is larger than the sum of its proper divisors (1).

953221 is an equidigital number, since it uses as much as digits as its factorization.

953221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 22.

The square root of 953221 is about 976.3303744123. The cubic root of 953221 is about 98.4157335430.

The spelling of 953221 in words is "nine hundred fifty-three thousand, two hundred twenty-one".