705740 has 36 divisors (see below), whose sum is σ = 1717968. Its totient is φ = 238560.

The previous prime is 705737. The next prime is 705751. The reversal of 705740 is 47507.

705740 = T₁₀₄ + T₁₀₅ + ... + T₁₇₄.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9905 + ... + 9975.

2⁷⁰⁵⁷⁴⁰ is an apocalyptic number.

705740 is a gapful number since it is divisible by the number (70) 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 705740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858984).

705740 is an abundant number, since it is smaller than the sum of its proper divisors (1012228).

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

705740 is a wasteful number, since it uses less digits than its factorization.

705740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 705740 is about 840.0833292001. The cubic root of 705740 is about 89.0324335774.

The spelling of 705740 in words is "seven hundred five thousand, seven hundred forty".