28383487 has 8 divisors (see below), whose sum is σ = 31151232. Its totient is φ = 25647000.

The previous prime is 28383469. The next prime is 28383497. The reversal of 28383487 is 78438382.

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 28383487 - 2¹¹ = 28381439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28383437) 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, 5889 + ... + 9562.

It is an arithmetic number, because the mean of its divisors is an integer number (3893904).

Almost surely, 2^28383487 is an apocalyptic number.

28383487 is a deficient number, since it is larger than the sum of its proper divisors (2767745).

28383487 is a wasteful number, since it uses less digits than its factorization.

28383487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15629.

The product of its digits is 258048, while the sum is 43.

The square root of 28383487 is about 5327.6155078984. The cubic root of 28383487 is about 305.0389164711.

The spelling of 28383487 in words is "twenty-eight million, three hundred eighty-three thousand, four hundred eighty-seven".