28102802 has 64 divisors (see below), whose sum is σ = 56899584. Its totient is φ = 10091520.

The previous prime is 28102793. The next prime is 28102807. The reversal of 28102802 is 20820182.

It is not an unprimeable number, because it can be changed into a prime (28102807) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 95768 + ... + 96060.

It is an arithmetic number, because the mean of its divisors is an integer number (889056).

Almost surely, 2^28102802 is an apocalyptic number.

28102802 is an abundant number, since it is smaller than the sum of its proper divisors (28796782).

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

28102802 is a wasteful number, since it uses less digits than its factorization.

28102802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 28102802 is about 5301.2075982742. The cubic root of 28102802 is about 304.0300711827.

Adding to 28102802 its reverse (20820182), we get a palindrome (48922984).

The spelling of 28102802 in words is "twenty-eight million, one hundred two thousand, eight hundred two".