705492 has 18 divisors (see below), whose sum is σ = 1783418. Its totient is φ = 235152.

The previous prime is 705491. The next prime is 705493. The reversal of 705492 is 294507.

705492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (705491) and next prime (705493).

It can be written as a sum of positive squares in only one way, i.e., 571536 + 133956 = 756^2 + 366^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9763 + ... + 9834.

2⁷⁰⁵⁴⁹² is an apocalyptic number.

It is an amenable number.

705492 is an abundant number, since it is smaller than the sum of its proper divisors (1077926).

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

705492 is a wasteful number, since it uses less digits than its factorization.

705492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19607 (or 19602 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 705492 is about 839.9357118256. The cubic root of 705492 is about 89.0220035652.

Adding to 705492 its reverse (294507), we get a palindrome (999999).

The spelling of 705492 in words is "seven hundred five thousand, four hundred ninety-two".