28839468 has 24 divisors (see below), whose sum is σ = 76905472. Its totient is φ = 8239824.

The previous prime is 28839467. The next prime is 28839469. The reversal of 28839468 is 86493882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28839467) and next prime (28839469).

It is not an unprimeable number, because it can be changed into a prime (28839467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171580 + ... + 171747.

Almost surely, 2^28839468 is an apocalyptic number.

28839468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28839468 is an abundant number, since it is smaller than the sum of its proper divisors (48066004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28839468 is a wasteful number, since it uses less digits than its factorization.

28839468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343341 (or 343339 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 28839468 is about 5370.2391008222. The cubic root of 28839468 is about 306.6637308058.

The spelling of 28839468 in words is "twenty-eight million, eight hundred thirty-nine thousand, four hundred sixty-eight".