705612 has 24 divisors (see below), whose sum is σ = 1662976. Its totient is φ = 232848.

The previous prime is 705559. The next prime is 705613. The reversal of 705612 is 216507.

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 (705613) by changing a digit.

705612 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 7 ways as a sum of consecutive naturals, for example, 1293 + ... + 1755.

2⁷⁰⁵⁶¹² is an apocalyptic number.

It is an amenable number.

705612 is an abundant number, since it is smaller than the sum of its proper divisors (957364).

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

705612 is a wasteful number, since it uses less digits than its factorization.

705612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 705612 is about 840.0071428268. The cubic root of 705612 is about 89.0270506504.

The spelling of 705612 in words is "seven hundred five thousand, six hundred twelve".