705397 has 8 divisors (see below), whose sum is σ = 879552. Its totient is φ = 549600.

The previous prime is 705389. The next prime is 705403. The reversal of 705397 is 793507.

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 705397 - 2³ = 705389 is a prime.

It is a Duffinian number.

705397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4504 + ... + 4657.

It is an arithmetic number, because the mean of its divisors is an integer number (109944).

2⁷⁰⁵³⁹⁷ is an apocalyptic number.

705397 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

705397 is a deficient number, since it is larger than the sum of its proper divisors (174155).

705397 is a wasteful number, since it uses less digits than its factorization.

705397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179.

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 705397 is about 839.8791579745. The cubic root of 705397 is about 89.0180075501.

The spelling of 705397 in words is "seven hundred five thousand, three hundred ninety-seven".