706421911 has 4 divisors (see below), whose sum is σ = 760762072. Its totient is φ = 652081752.

The previous prime is 706421909. The next prime is 706421939. The reversal of 706421911 is 119124607.

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

It is a cyclic number.

It is not a de Polignac number, because 706421911 - 2¹ = 706421909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706422911) 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, 27170061 + ... + 27170086.

It is an arithmetic number, because the mean of its divisors is an integer number (190190518).

Almost surely, 2^706421911 is an apocalyptic number.

706421911 is a deficient number, since it is larger than the sum of its proper divisors (54340161).

706421911 is a wasteful number, since it uses less digits than its factorization.

706421911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54340160.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 706421911 is about 26578.5987403399. The cubic root of 706421911 is about 890.6109977747.

The spelling of 706421911 in words is "seven hundred six million, four hundred twenty-one thousand, nine hundred eleven".