704723647 has 4 divisors (see below), whose sum is σ = 704818296. Its totient is φ = 704629000.

The previous prime is 704723639. The next prime is 704723707. The reversal of 704723647 is 746327407.

704723647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 704723647 - 2³ = 704723639 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704723147) 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, 35104 + ... + 51397.

It is an arithmetic number, because the mean of its divisors is an integer number (176204574).

Almost surely, 2^704723647 is an apocalyptic number.

704723647 is a deficient number, since it is larger than the sum of its proper divisors (94649).

704723647 is an equidigital number, since it uses as much as digits as its factorization.

704723647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94648.

The product of its (nonzero) digits is 197568, while the sum is 40.

The square root of 704723647 is about 26546.6315565648. The cubic root of 704723647 is about 889.8967380090.

The spelling of 704723647 in words is "seven hundred four million, seven hundred twenty-three thousand, six hundred forty-seven".