308869 has 8 divisors (see below), whose sum is σ = 345312. Its totient is φ = 273840.

The previous prime is 308857. The next prime is 308887. The reversal of 308869 is 968803.

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

It is a cyclic number.

It is not a de Polignac number, because 308869 - 2¹¹ = 306821 is a prime.

It is a super-2 number, since 2×308869² = 190800118322, which contains 22 as substring.

308869 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147 + ... + 799.

It is an arithmetic number, because the mean of its divisors is an integer number (43164).

2³⁰⁸⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

308869 is a deficient number, since it is larger than the sum of its proper divisors (36443).

308869 is a wasteful number, since it uses less digits than its factorization.

308869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 308869 is about 555.7598402188. The cubic root of 308869 is about 67.5965878324.

The spelling of 308869 in words is "three hundred eight thousand, eight hundred sixty-nine".