28486105 has 4 divisors (see below), whose sum is σ = 34183332. Its totient is φ = 22788880.

The previous prime is 28486097. The next prime is 28486109. The reversal of 28486105 is 50168482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22155849 + 6330256 = 4707^2 + 2516^2 .

It is not a de Polignac number, because 28486105 - 2³ = 28486097 is a prime.

It is a super-2 number, since 2×28486105² = 1622916356142050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28486109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2848606 + ... + 2848615.

It is an arithmetic number, because the mean of its divisors is an integer number (8545833).

Almost surely, 2^28486105 is an apocalyptic number.

It is an amenable number.

28486105 is a deficient number, since it is larger than the sum of its proper divisors (5697227).

28486105 is an equidigital number, since it uses as much as digits as its factorization.

28486105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5697226.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 28486105 is about 5337.2375813711. The cubic root of 28486105 is about 305.4060881219.

The spelling of 28486105 in words is "twenty-eight million, four hundred eighty-six thousand, one hundred five".