308825 has 12 divisors (see below), whose sum is σ = 418128. Its totient is φ = 224400.

The previous prime is 308813. The next prime is 308827. The reversal of 308825 is 528803.

It is not a de Polignac number, because 308825 - 2⁴ = 308809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 308794 and 308803.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308825.

It is not an unprimeable number, because it can be changed into a prime (308827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287 + ... + 836.

It is an arithmetic number, because the mean of its divisors is an integer number (34844).

2³⁰⁸⁸²⁵ is an apocalyptic number.

It is an amenable number.

308825 is a deficient number, since it is larger than the sum of its proper divisors (109303).

308825 is a wasteful number, since it uses less digits than its factorization.

308825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 308825 is about 555.7202533649. The cubic root of 308825 is about 67.5933778511.

It can be divided in two parts, 3088 and 25, that added together give a palindrome (3113).

The spelling of 308825 in words is "three hundred eight thousand, eight hundred twenty-five".