846685349 has 2 divisors, whose sum is σ = 846685350. Its totient is φ = 846685348.

The previous prime is 846685337. The next prime is 846685379. The reversal of 846685349 is 943586648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605504449 + 241180900 = 24607^2 + 15530^2 .

It is a cyclic number.

It is not a de Polignac number, because 846685349 - 2²⁴ = 829908133 is a prime.

It is a super-2 number, since 2×846685349² = 1433752160422503602, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 846685349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846685379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423342674 + 423342675.

It is an arithmetic number, because the mean of its divisors is an integer number (423342675).

Almost surely, 2^846685349 is an apocalyptic number.

It is an amenable number.

846685349 is a deficient number, since it is larger than the sum of its proper divisors (1).

846685349 is an equidigital number, since it uses as much as digits as its factorization.

846685349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 53.

The square root of 846685349 is about 29097.8581514173. The cubic root of 846685349 is about 946.0353141005.

The spelling of 846685349 in words is "eight hundred forty-six million, six hundred eighty-five thousand, three hundred forty-nine".