706225405 has 4 divisors (see below), whose sum is σ = 847470492. Its totient is φ = 564980320.

The previous prime is 706225381. The next prime is 706225417. The reversal of 706225405 is 504522607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504522607 = 367 ⋅1374721.

It can be written as a sum of positive squares in 2 ways, for example, as 558991449 + 147233956 = 23643^2 + 12134^2 .

It is not a de Polignac number, because 706225405 - 2⁷ = 706225277 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70622536 + ... + 70622545.

It is an arithmetic number, because the mean of its divisors is an integer number (211867623).

Almost surely, 2^706225405 is an apocalyptic number.

It is an amenable number.

706225405 is a deficient number, since it is larger than the sum of its proper divisors (141245087).

706225405 is a wasteful number, since it uses less digits than its factorization.

706225405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141245086.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 706225405 is about 26574.9017872127. The cubic root of 706225405 is about 890.5284094367.

The spelling of 706225405 in words is "seven hundred six million, two hundred twenty-five thousand, four hundred five".