28182007 has 12 divisors (see below), whose sum is σ = 33842496. Its totient is φ = 23375520.

The previous prime is 28181977. The next prime is 28182013. The reversal of 28182007 is 70028182.

It is not a de Polignac number, because 28182007 - 2¹¹ = 28179959 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 (28182017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7758 + ... + 10795.

It is an arithmetic number, because the mean of its divisors is an integer number (2820208).

Almost surely, 2^28182007 is an apocalyptic number.

28182007 is a deficient number, since it is larger than the sum of its proper divisors (5660489).

28182007 is a wasteful number, since it uses less digits than its factorization.

28182007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18598 (or 18591 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 28182007 is about 5308.6728096578. The cubic root of 28182007 is about 304.3154296096.

The spelling of 28182007 in words is "twenty-eight million, one hundred eighty-two thousand, seven".