1123479798 has 32 divisors (see below), whose sum is σ = 2579490816. Its totient is φ = 319552128.

The previous prime is 1123479793. The next prime is 1123479809. The reversal of 1123479798 is 8979743211.

It is a self number, because there is not a number n which added to its sum of digits gives 1123479798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123479793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50611 + ... + 69342.

It is an arithmetic number, because the mean of its divisors is an integer number (80609088).

Almost surely, 2^1123479798 is an apocalyptic number.

1123479798 is an abundant number, since it is smaller than the sum of its proper divisors (1456011018).

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

1123479798 is a wasteful number, since it uses less digits than its factorization.

1123479798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120188.

The product of its digits is 762048, while the sum is 51.

The square root of 1123479798 is about 33518.3501682287. The cubic root of 1123479798 is about 1039.5732340467.

The spelling of 1123479798 in words is "one billion, one hundred twenty-three million, four hundred seventy-nine thousand, seven hundred ninety-eight".