798138936 has 96 divisors (see below), whose sum is σ = 2479782240. Its totient is φ = 227176704.

The previous prime is 798138911. The next prime is 798138949. The reversal of 798138936 is 639831897.

It is a super-2 number, since 2×798138936² = 1274051522318424192, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136750 + ... + 142466.

It is an arithmetic number, because the mean of its divisors is an integer number (25831065).

Almost surely, 2^798138936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 798138936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239891120).

798138936 is an abundant number, since it is smaller than the sum of its proper divisors (1681643304).

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

798138936 is a wasteful number, since it uses less digits than its factorization.

798138936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013 (or 6006 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 798138936 is about 28251.3528171661. The cubic root of 798138936 is about 927.5973499676.

The spelling of 798138936 in words is "seven hundred ninety-eight million, one hundred thirty-eight thousand, nine hundred thirty-six".