706799521 has 8 divisors (see below), whose sum is σ = 720770400. Its totient is φ = 692965248.

The previous prime is 706799501. The next prime is 706799537. The reversal of 706799521 is 125997607.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 706799521 - 2⁷ = 706799393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706799501) 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 7 ways as a sum of consecutive naturals, for example, 23671 + ... + 44428.

It is an arithmetic number, because the mean of its divisors is an integer number (90096300).

Almost surely, 2^706799521 is an apocalyptic number.

It is an amenable number.

706799521 is a deficient number, since it is larger than the sum of its proper divisors (13970879).

706799521 is a wasteful number, since it uses less digits than its factorization.

706799521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68303.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 706799521 is about 26585.7014389314. The cubic root of 706799521 is about 890.7696582527.

It can be divided in two parts, 70679 and 9521, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 706799521 in words is "seven hundred six million, seven hundred ninety-nine thousand, five hundred twenty-one".