705278 has 8 divisors (see below), whose sum is σ = 1209072. Its totient is φ = 302256.

The previous prime is 705277. The next prime is 705293. The reversal of 705278 is 872507.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 705278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705277) 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, 25175 + ... + 25202.

It is an arithmetic number, because the mean of its divisors is an integer number (151134).

2⁷⁰⁵²⁷⁸ is an apocalyptic number.

705278 is a deficient number, since it is larger than the sum of its proper divisors (503794).

705278 is a wasteful number, since it uses less digits than its factorization.

705278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50386.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 705278 is about 839.8083114616. The cubic root of 705278 is about 89.0130015093.

The spelling of 705278 in words is "seven hundred five thousand, two hundred seventy-eight".