28802105 has 8 divisors (see below), whose sum is σ = 34656000. Its totient is φ = 22979376.

The previous prime is 28802093. The next prime is 28802107. The reversal of 28802105 is 50120882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28802105 - 2¹² = 28798009 is a prime.

It is a super-2 number, since 2×28802105² = 1659122504862050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28802107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5705 + ... + 9494.

It is an arithmetic number, because the mean of its divisors is an integer number (4332000).

Almost surely, 2^28802105 is an apocalyptic number.

It is an amenable number.

28802105 is a deficient number, since it is larger than the sum of its proper divisors (5853895).

28802105 is a wasteful number, since it uses less digits than its factorization.

28802105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15583.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 28802105 is about 5366.7592642115. The cubic root of 28802105 is about 306.5312407447.

Adding to 28802105 its reverse (50120882), we get a palindrome (78922987).

The spelling of 28802105 in words is "twenty-eight million, eight hundred two thousand, one hundred five".