853634 has 8 divisors (see below), whose sum is σ = 1301628. Its totient is φ = 419760.

The previous prime is 853597. The next prime is 853637. The reversal of 853634 is 436358.

It can be written as a sum of positive squares in 2 ways, for example, as 727609 + 126025 = 853^2 + 355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 853597 and 853606.

It is not an unprimeable number, because it can be changed into a prime (853637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3377 + ... + 3620.

2⁸⁵³⁶³⁴ is an apocalyptic number.

853634 is a deficient number, since it is larger than the sum of its proper divisors (447994).

853634 is a wasteful number, since it uses less digits than its factorization.

853634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7060.

The product of its digits is 8640, while the sum is 29.

The square root of 853634 is about 923.9231569779. The cubic root of 853634 is about 94.8616268038.

The spelling of 853634 in words is "eight hundred fifty-three thousand, six hundred thirty-four".