705198 has 16 divisors (see below), whose sum is σ = 1519056. Its totient is φ = 216960.

The previous prime is 705197. The next prime is 705209. The reversal of 705198 is 891507.

705198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4443 + ... + 4598.

It is an arithmetic number, because the mean of its divisors is an integer number (94941).

2⁷⁰⁵¹⁹⁸ is an apocalyptic number.

705198 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

705198 is an abundant number, since it is smaller than the sum of its proper divisors (813858).

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

705198 is a wasteful number, since it uses less digits than its factorization.

705198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9059.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 705198 is about 839.7606801941. The cubic root of 705198 is about 89.0096357871.

It can be divided in two parts, 705 and 198, that added together give a triangular number (903 = T₄₂).

The spelling of 705198 in words is "seven hundred five thousand, one hundred ninety-eight".