959641321 has 4 divisors (see below), whose sum is σ = 960545152. Its totient is φ = 958737492.

The previous prime is 959641307. The next prime is 959641327. The reversal of 959641321 is 123146959.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123146959 = 13 ⋅9472843.

It is a cyclic number.

It is not a de Polignac number, because 959641321 - 2⁵ = 959641289 is a prime.

It is a super-2 number, since 2×959641321² = 1841822929941250082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (959641327) 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, 450321 + ... + 452446.

It is an arithmetic number, because the mean of its divisors is an integer number (240136288).

Almost surely, 2^959641321 is an apocalyptic number.

It is an amenable number.

959641321 is a deficient number, since it is larger than the sum of its proper divisors (903831).

959641321 is a wasteful number, since it uses less digits than its factorization.

959641321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903830.

The product of its digits is 58320, while the sum is 40.

The square root of 959641321 is about 30978.0780714363. The cubic root of 959641321 is about 986.3619563058.

The spelling of 959641321 in words is "nine hundred fifty-nine million, six hundred forty-one thousand, three hundred twenty-one".