705945 has 16 divisors (see below), whose sum is σ = 1189440. Its totient is φ = 356544.

The previous prime is 705937. The next prime is 705949. The reversal of 705945 is 549507.

705945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 705945 - 2³ = 705937 is a prime.

705945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (705949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (74340).

2⁷⁰⁵⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

705945 is a deficient number, since it is larger than the sum of its proper divisors (483495).

705945 is a wasteful number, since it uses less digits than its factorization.

705945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 705945 is about 840.2053320469. The cubic root of 705945 is about 89.0410533155.

The spelling of 705945 in words is "seven hundred five thousand, nine hundred forty-five".