798408 has 48 divisors (see below), whose sum is σ = 2331420. Its totient is φ = 245376.

The previous prime is 798403. The next prime is 798409. The reversal of 798408 is 804897.

It can be written as a sum of positive squares in 2 ways, for example, as 636804 + 161604 = 798^2 + 402^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (798403) by changing a digit.

798408 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510 + ... + 1362.

2⁷⁹⁸⁴⁰⁸ is an apocalyptic number.

798408 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 798408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165710).

798408 is an abundant number, since it is smaller than the sum of its proper divisors (1533012).

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

798408 is a wasteful number, since it uses less digits than its factorization.

798408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 798408 is about 893.5367927511. The cubic root of 798408 is about 92.7701573682.

The spelling of 798408 in words is "seven hundred ninety-eight thousand, four hundred eight".