706520401 has 4 divisors (see below), whose sum is σ = 722951152. Its totient is φ = 690089652.

The previous prime is 706520389. The next prime is 706520413. The reversal of 706520401 is 104025607.

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 an interprime number because it is at equal distance from previous prime (706520389) and next prime (706520413).

It is a cyclic number.

It is not a de Polignac number, because 706520401 - 2¹¹ = 706518353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706520461) by changing a digit.

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, 8215311 + ... + 8215396.

It is an arithmetic number, because the mean of its divisors is an integer number (180737788).

Almost surely, 2^706520401 is an apocalyptic number.

It is an amenable number.

706520401 is a deficient number, since it is larger than the sum of its proper divisors (16430751).

706520401 is a wasteful number, since it uses less digits than its factorization.

706520401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16430750.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 706520401 is about 26580.4514822454. The cubic root of 706520401 is about 890.6523857893.

The spelling of 706520401 in words is "seven hundred six million, five hundred twenty thousand, four hundred one".