981224798 has 4 divisors (see below), whose sum is σ = 1471837200. Its totient is φ = 490612398.

The previous prime is 981224791. The next prime is 981224807. The reversal of 981224798 is 897422189.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981224791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245306198 + ... + 245306201.

It is an arithmetic number, because the mean of its divisors is an integer number (367959300).

Almost surely, 2^981224798 is an apocalyptic number.

981224798 is a deficient number, since it is larger than the sum of its proper divisors (490612402).

981224798 is a wasteful number, since it uses less digits than its factorization.

981224798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490612401.

The product of its digits is 580608, while the sum is 50.

The square root of 981224798 is about 31324.5079450580. The cubic root of 981224798 is about 993.7020180253.

The spelling of 981224798 in words is "nine hundred eighty-one million, two hundred twenty-four thousand, seven hundred ninety-eight".