705749 has 8 divisors (see below), whose sum is σ = 780192. Its totient is φ = 633040.

The previous prime is 705737. The next prime is 705751. The reversal of 705749 is 947507.

705749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 705749 - 2⁸ = 705493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527 + ... + 1299.

It is an arithmetic number, because the mean of its divisors is an integer number (97524).

2⁷⁰⁵⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

705749 is a deficient number, since it is larger than the sum of its proper divisors (74443).

705749 is a wasteful number, since it uses less digits than its factorization.

705749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 705749 is about 840.0886857945. The cubic root of 705749 is about 89.0328120399.

The spelling of 705749 in words is "seven hundred five thousand, seven hundred forty-nine".