853975449 has 6 divisors (see below), whose sum is σ = 1233520106. Its totient is φ = 569316960.

The previous prime is 853975439. The next prime is 853975459. The reversal of 853975449 is 944579358.

853975449 is a `hidden beast` number, since 8 + 5 + 3 + 97 + 544 + 9 = 666.

853975449 is digitally balanced in base 2, 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 (853975439) and next prime (853975459).

It can be written as a sum of positive squares in only one way, i.e., 819963225 + 34012224 = 28635^2 + 5832^2 .

It is not a de Polignac number, because 853975449 - 2⁸ = 853975193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853975395 and 853975404.

It is not an unprimeable number, because it can be changed into a prime (853975439) 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, 47443072 + ... + 47443089.

Almost surely, 2^853975449 is an apocalyptic number.

It is an amenable number.

853975449 is a deficient number, since it is larger than the sum of its proper divisors (379544657).

853975449 is a wasteful number, since it uses less digits than its factorization.

853975449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94886167 (or 94886164 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 853975449 is about 29222.8583304235. The cubic root of 853975449 is about 948.7427316435.

The spelling of 853975449 in words is "eight hundred fifty-three million, nine hundred seventy-five thousand, four hundred forty-nine".