28547898 has 8 divisors (see below), whose sum is σ = 57095808. Its totient is φ = 9515964.

The previous prime is 28547839. The next prime is 28547903. The reversal of 28547898 is 89874582.

It is a happy number.

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

28547898 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28547898.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2378986 + ... + 2378997.

It is an arithmetic number, because the mean of its divisors is an integer number (7136976).

Almost surely, 2^28547898 is an apocalyptic number.

28547898 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.

28547898 is a wasteful number, since it uses less digits than its factorization.

28547898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757988.

The product of its digits is 1290240, while the sum is 51.

The square root of 28547898 is about 5343.0233014652. The cubic root of 28547898 is about 305.6267609602.

The spelling of 28547898 in words is "twenty-eight million, five hundred forty-seven thousand, eight hundred ninety-eight".