708445 has 4 divisors (see below), whose sum is σ = 850140. Its totient is φ = 566752.

The previous prime is 708437. The next prime is 708457. The reversal of 708445 is 544807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 407044 + 301401 = 638^2 + 549^2 .

It is a cyclic number.

It is not a de Polignac number, because 708445 - 2³ = 708437 is a prime.

708445 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70840 + ... + 70849.

It is an arithmetic number, because the mean of its divisors is an integer number (212535).

2⁷⁰⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

708445 is a deficient number, since it is larger than the sum of its proper divisors (141695).

708445 is a wasteful number, since it uses less digits than its factorization.

708445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141694.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 708445 is about 841.6917488012. The cubic root of 708445 is about 89.1460380653.

It can be divided in two parts, 70 and 8445, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 708445 in words is "seven hundred eight thousand, four hundred forty-five".