28817070 has 16 divisors (see below), whose sum is σ = 69161040. Its totient is φ = 7684544.

The previous prime is 28817069. The next prime is 28817077. The reversal of 28817070 is 7071882.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28817077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480255 + ... + 480314.

It is an arithmetic number, because the mean of its divisors is an integer number (4322565).

Almost surely, 2^28817070 is an apocalyptic number.

28817070 is an abundant number, since it is smaller than the sum of its proper divisors (40343970).

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

28817070 is a wasteful number, since it uses less digits than its factorization.

28817070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960579.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 28817070 is about 5368.1533137570. The cubic root of 28817070 is about 306.5843207281.

The spelling of 28817070 in words is "twenty-eight million, eight hundred seventeen thousand, seventy".