321116958 has 12 divisors (see below), whose sum is σ = 695753448. Its totient is φ = 107038980.

The previous prime is 321116953. The next prime is 321116963. The reversal of 321116958 is 859611123.

321116958 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (321116953) and next prime (321116963).

It is a super-2 number, since 2×321116958² = 206232201430347528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321116953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8919898 + ... + 8919933.

It is an arithmetic number, because the mean of its divisors is an integer number (57979454).

Almost surely, 2^321116958 is an apocalyptic number.

321116958 is an abundant number, since it is smaller than the sum of its proper divisors (374636490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321116958 is a wasteful number, since it uses less digits than its factorization.

321116958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17839839 (or 17839836 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 321116958 is about 17919.7365494027. The cubic root of 321116958 is about 684.7852759061.

The spelling of 321116958 in words is "three hundred twenty-one million, one hundred sixteen thousand, nine hundred fifty-eight".