852684949 has 2 divisors, whose sum is σ = 852684950. Its totient is φ = 852684948.

The previous prime is 852684919. The next prime is 852684961. The reversal of 852684949 is 949486258.

852684949 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., 852056100 + 628849 = 29190^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 852684949 - 2⁷ = 852684821 is a prime.

It is a super-2 number, since 2×852684949² = 1454143244502265202, 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 852684949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (852684919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426342474 + 426342475.

It is an arithmetic number, because the mean of its divisors is an integer number (426342475).

Almost surely, 2^852684949 is an apocalyptic number.

It is an amenable number.

852684949 is a deficient number, since it is larger than the sum of its proper divisors (1).

852684949 is an equidigital number, since it uses as much as digits as its factorization.

852684949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4976640, while the sum is 55.

The square root of 852684949 is about 29200.7696645140. The cubic root of 852684949 is about 948.2645876294.

The spelling of 852684949 in words is "eight hundred fifty-two million, six hundred eighty-four thousand, nine hundred forty-nine".