825434 has 4 divisors (see below), whose sum is σ = 1238154. Its totient is φ = 412716.

The previous prime is 825421. The next prime is 825439. The reversal of 825434 is 434528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 644809 + 180625 = 803^2 + 425^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (825439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206357 + ... + 206360.

2⁸²⁵⁴³⁴ is an apocalyptic number.

825434 is a deficient number, since it is larger than the sum of its proper divisors (412720).

825434 is a wasteful number, since it uses less digits than its factorization.

825434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412719.

The product of its digits is 3840, while the sum is 26.

The square root of 825434 is about 908.5339839544. The cubic root of 825434 is about 93.8053160957.

The spelling of 825434 in words is "eight hundred twenty-five thousand, four hundred thirty-four".