705923 has 4 divisors (see below), whose sum is σ = 725040. Its totient is φ = 686808.

The previous prime is 705919. The next prime is 705937. The reversal of 705923 is 329507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329507 = 109 ⋅3023.

It is a cyclic number.

It is not a de Polignac number, because 705923 - 2² = 705919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 705892 and 705901.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 705923.

It is not an unprimeable number, because it can be changed into a prime (705973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9503 + ... + 9576.

It is an arithmetic number, because the mean of its divisors is an integer number (181260).

2⁷⁰⁵⁹²³ is an apocalyptic number.

705923 is a deficient number, since it is larger than the sum of its proper divisors (19117).

705923 is a wasteful number, since it uses less digits than its factorization.

705923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19116.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 705923 is about 840.1922399070. The cubic root of 705923 is about 89.0401283504.

The spelling of 705923 in words is "seven hundred five thousand, nine hundred twenty-three".