28647102 has 32 divisors (see below), whose sum is σ = 64197504. Its totient is φ = 8445600.

The previous prime is 28647097. The next prime is 28647109. The reversal of 28647102 is 20174682.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 28647102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28647109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3424 + ... + 8307.

It is an arithmetic number, because the mean of its divisors is an integer number (2006172).

Almost surely, 2^28647102 is an apocalyptic number.

28647102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28647102 is an abundant number, since it is smaller than the sum of its proper divisors (35550402).

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

28647102 is a wasteful number, since it uses less digits than its factorization.

28647102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11784.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 28647102 is about 5352.2987584775. The cubic root of 28647102 is about 305.9803695383.

The spelling of 28647102 in words is "twenty-eight million, six hundred forty-seven thousand, one hundred two".