706649555 has 8 divisors (see below), whose sum is σ = 868662144. Its totient is φ = 551531200.

The previous prime is 706649551. The next prime is 706649561. The reversal of 706649555 is 555946607.

It is a happy number.

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

It is not a de Polignac number, because 706649555 - 2² = 706649551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706649551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1723331 + ... + 1723740.

It is an arithmetic number, because the mean of its divisors is an integer number (108582768).

Almost surely, 2^706649555 is an apocalyptic number.

706649555 is a deficient number, since it is larger than the sum of its proper divisors (162012589).

706649555 is a wasteful number, since it uses less digits than its factorization.

706649555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447117.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The square root of 706649555 is about 26582.8808634429. The cubic root of 706649555 is about 890.7066537715.

The spelling of 706649555 in words is "seven hundred six million, six hundred forty-nine thousand, five hundred fifty-five".