28899846 has 12 divisors (see below), whose sum is σ = 62616372. Its totient is φ = 9633276.

The previous prime is 28899841. The next prime is 28899869. The reversal of 28899846 is 64899882.

It is a junction number, because it is equal to n+sod(n) for n = 28899792 and 28899801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28899841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 802756 + ... + 802791.

It is an arithmetic number, because the mean of its divisors is an integer number (5218031).

Almost surely, 2^28899846 is an apocalyptic number.

28899846 is an abundant number, since it is smaller than the sum of its proper divisors (33716526).

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

28899846 is a wasteful number, since it uses less digits than its factorization.

28899846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605555 (or 1605552 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 28899846 is about 5375.8576990095. The cubic root of 28899846 is about 306.8775909261.

The spelling of 28899846 in words is "twenty-eight million, eight hundred ninety-nine thousand, eight hundred forty-six".