28411798 has 4 divisors (see below), whose sum is σ = 42617700. Its totient is φ = 14205898.

The previous prime is 28411781. The next prime is 28411807. The reversal of 28411798 is 89711482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 28411798.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7102948 + ... + 7102951.

It is an arithmetic number, because the mean of its divisors is an integer number (10654425).

Almost surely, 2^28411798 is an apocalyptic number.

28411798 is a deficient number, since it is larger than the sum of its proper divisors (14205902).

28411798 is a wasteful number, since it uses less digits than its factorization.

28411798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205901.

The product of its digits is 32256, while the sum is 40.

The square root of 28411798 is about 5330.2718504782. The cubic root of 28411798 is about 305.1403027344.

The spelling of 28411798 in words is "twenty-eight million, four hundred eleven thousand, seven hundred ninety-eight".