846340381 has 2 divisors, whose sum is σ = 846340382. Its totient is φ = 846340380.

The previous prime is 846340373. The next prime is 846340399. The reversal of 846340381 is 183043648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 842973156 + 3367225 = 29034^2 + 1835^2 .

It is a cyclic number.

It is not a de Polignac number, because 846340381 - 2³ = 846340373 is a prime.

It is a super-2 number, since 2×846340381² = 1432584081022450322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 846340381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846340301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423170190 + 423170191.

It is an arithmetic number, because the mean of its divisors is an integer number (423170191).

Almost surely, 2^846340381 is an apocalyptic number.

It is an amenable number.

846340381 is a deficient number, since it is larger than the sum of its proper divisors (1).

846340381 is an equidigital number, since it uses as much as digits as its factorization.

846340381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 846340381 is about 29091.9298259844. The cubic root of 846340381 is about 945.9068144783.

The spelling of 846340381 in words is "eight hundred forty-six million, three hundred forty thousand, three hundred eighty-one".