704056924561 has 9 divisors (see below), whose sum is σ = 706354232241. Its totient is φ = 701767072512.

The previous prime is 704056924547. The next prime is 704056924577. The reversal of 704056924561 is 165429650407.

The square root of 704056924561 is 839081.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 27649370961 + 676407553600 = 166281^2 + 822440^2 .

It is not a de Polignac number, because 704056924561 - 2¹⁵ = 704056891793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704056924511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 296194405 + ... + 296196781.

Almost surely, 2^704056924561 is an apocalyptic number.

704056924561 is the 839081-st square number.

704056924561 is the 419541-st centered octagonal number.

It is an amenable number.

704056924561 is a deficient number, since it is larger than the sum of its proper divisors (2297307680).

704056924561 is an frugal number, since it uses more digits than its factorization.

704056924561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460 (or 2730 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

Multiplying 704056924561 by its sum of digits (49), we get a square (34498789303489 = 5873567²).

The spelling of 704056924561 in words is "seven hundred four billion, fifty-six million, nine hundred twenty-four thousand, five hundred sixty-one".