705399 has 8 divisors (see below), whose sum is σ = 953712. Its totient is φ = 463680.

The previous prime is 705389. The next prime is 705403. The reversal of 705399 is 993507.

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

It is a de Polignac number, because none of the positive numbers 2^k-705399 is a prime.

It is an Ulam number.

705399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705389) 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, 1392 + ... + 1829.

It is an arithmetic number, because the mean of its divisors is an integer number (119214).

2⁷⁰⁵³⁹⁹ is an apocalyptic number.

705399 is a deficient number, since it is larger than the sum of its proper divisors (248313).

705399 is a wasteful number, since it uses less digits than its factorization.

705399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297.

The product of its (nonzero) digits is 8505, while the sum is 33.

The square root of 705399 is about 839.8803486212. The cubic root of 705399 is about 89.0180916805.

The spelling of 705399 in words is "seven hundred five thousand, three hundred ninety-nine".