706489 has 4 divisors (see below), whose sum is σ = 807424. Its totient is φ = 605556.

The previous prime is 706487. The next prime is 706499. The reversal of 706489 is 984607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 706489 - 2¹ = 706487 is a prime.

It is a Duffinian number.

706489 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (706481) 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, 50457 + ... + 50470.

It is an arithmetic number, because the mean of its divisors is an integer number (201856).

2⁷⁰⁶⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

706489 is a deficient number, since it is larger than the sum of its proper divisors (100935).

706489 is a wasteful number, since it uses less digits than its factorization.

706489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100934.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 706489 is about 840.5290000946. The cubic root of 706489 is about 89.0639190704.

The spelling of 706489 in words is "seven hundred six thousand, four hundred eighty-nine".