28329007 has 12 divisors (see below), whose sum is σ = 33449880. Its totient is φ = 23916816.

The previous prime is 28328941. The next prime is 28329011. The reversal of 28329007 is 70092382.

It is not a de Polignac number, because 28329007 - 2⁷ = 28328879 is a prime.

It is the 5323-rd Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28329007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28329047) by changing a digit.

It is a nontrivial repunit in base 5322.

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 11 ways as a sum of consecutive naturals, for example, 1032 + ... + 7597.

It is an arithmetic number, because the mean of its divisors is an integer number (2787490).

Almost surely, 2^28329007 is an apocalyptic number.

28329007 is a deficient number, since it is larger than the sum of its proper divisors (5120873).

28329007 is an equidigital number, since it uses as much as digits as its factorization.

28329007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8710 (or 8703 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 28329007 is about 5322.5000704556. The cubic root of 28329007 is about 304.8436249366.

The spelling of 28329007 in words is "twenty-eight million, three hundred twenty-nine thousand, seven".