28313898 has 8 divisors (see below), whose sum is σ = 56627808. Its totient is φ = 9437964.

The previous prime is 28313893. The next prime is 28313911. The reversal of 28313898 is 89831382.

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

28313898 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28313893) 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, 2359486 + ... + 2359497.

It is an arithmetic number, because the mean of its divisors is an integer number (7078476).

Almost surely, 2^28313898 is an apocalyptic number.

28313898 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.

28313898 is a wasteful number, since it uses less digits than its factorization.

28313898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4718988.

The product of its digits is 82944, while the sum is 42.

The square root of 28313898 is about 5321.0805293662. The cubic root of 28313898 is about 304.7894201727.

The spelling of 28313898 in words is "twenty-eight million, three hundred thirteen thousand, eight hundred ninety-eight".