705400 has 24 divisors (see below), whose sum is σ = 1640520. Its totient is φ = 282080.

The previous prime is 705389. The next prime is 705403. The reversal of 705400 is 4507.

705400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705403) by changing a digit.

705400 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 5 ways as a sum of consecutive naturals, for example, 1564 + ... + 1963.

It is an arithmetic number, because the mean of its divisors is an integer number (68355).

2⁷⁰⁵⁴⁰⁰ is an apocalyptic number.

It is an amenable number.

705400 is an abundant number, since it is smaller than the sum of its proper divisors (935120).

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

705400 is a wasteful number, since it uses less digits than its factorization.

705400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 705400 is about 839.8809439438. The cubic root of 705400 is about 89.0181337456.

Adding to 705400 its reverse (4507), we get a palindrome (709907).

The spelling of 705400 in words is "seven hundred five thousand, four hundred".