28494849 has 16 divisors (see below), whose sum is σ = 39683520. Its totient is φ = 18164160.

The previous prime is 28494833. The next prime is 28494881. The reversal of 28494849 is 94849482.

It is not a de Polignac number, because 28494849 - 2⁴ = 28494833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28494798 and 28494807.

It is not an unprimeable number, because it can be changed into a prime (28494049) 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, 7779 + ... + 10839.

It is an arithmetic number, because the mean of its divisors is an integer number (2480220).

Almost surely, 2^28494849 is an apocalyptic number.

28494849 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

28494849 is a deficient number, since it is larger than the sum of its proper divisors (11188671).

28494849 is a wasteful number, since it uses less digits than its factorization.

28494849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200.

The product of its digits is 663552, while the sum is 48.

The square root of 28494849 is about 5338.0566688637. The cubic root of 28494849 is about 305.4373337373.

The spelling of 28494849 in words is "twenty-eight million, four hundred ninety-four thousand, eight hundred forty-nine".