825379 has 4 divisors (see below), whose sum is σ = 868840. Its totient is φ = 781920.

The previous prime is 825361. The next prime is 825389. The reversal of 825379 is 973528.

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

It is a cyclic number.

It is not a de Polignac number, because 825379 - 2⁵ = 825347 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21702 + ... + 21739.

It is an arithmetic number, because the mean of its divisors is an integer number (217210).

2⁸²⁵³⁷⁹ is an apocalyptic number.

825379 is a deficient number, since it is larger than the sum of its proper divisors (43461).

825379 is a wasteful number, since it uses less digits than its factorization.

825379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43460.

The product of its digits is 15120, while the sum is 34.

The square root of 825379 is about 908.5037149071. The cubic root of 825379 is about 93.8032325829.

The spelling of 825379 in words is "eight hundred twenty-five thousand, three hundred seventy-nine".