28899246 has 8 divisors (see below), whose sum is σ = 57798504. Its totient is φ = 9633080.

The previous prime is 28899197. The next prime is 28899251. The reversal of 28899246 is 64299882.

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

28899246 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28899195 and 28899204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2408265 + ... + 2408276.

It is an arithmetic number, because the mean of its divisors is an integer number (7224813).

Almost surely, 2^28899246 is an apocalyptic number.

28899246 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28899246 is a wasteful number, since it uses less digits than its factorization.

28899246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4816546.

The product of its digits is 497664, while the sum is 48.

The square root of 28899246 is about 5375.8018936713. The cubic root of 28899246 is about 306.8754671798.

The spelling of 28899246 in words is "twenty-eight million, eight hundred ninety-nine thousand, two hundred forty-six".