308847 has 24 divisors (see below), whose sum is σ = 525312. Its totient is φ = 159600.

The previous prime is 308827. The next prime is 308849. The reversal of 308847 is 748803.

It is not a de Polignac number, because 308847 - 2¹⁰ = 307823 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308847.

It is not an unprimeable number, because it can be changed into a prime (308849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1522 + ... + 1712.

It is an arithmetic number, because the mean of its divisors is an integer number (21888).

2³⁰⁸⁸⁴⁷ is an apocalyptic number.

308847 is a deficient number, since it is larger than the sum of its proper divisors (216465).

308847 is a wasteful number, since it uses less digits than its factorization.

308847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 308847 is about 555.7400471443. The cubic root of 308847 is about 67.5949828799.

The spelling of 308847 in words is "three hundred eight thousand, eight hundred forty-seven".