704172505 has 8 divisors (see below), whose sum is σ = 853374024. Its totient is φ = 557760000.

The previous prime is 704172451. The next prime is 704172517. The reversal of 704172505 is 505271407.

It can be written as a sum of positive squares in 4 ways, for example, as 93489561 + 610682944 = 9669^2 + 24712^2 .

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

It is not a de Polignac number, because 704172505 - 2¹³ = 704164313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 696696 + ... + 697705.

It is an arithmetic number, because the mean of its divisors is an integer number (106671753).

Almost surely, 2^704172505 is an apocalyptic number.

It is an amenable number.

704172505 is a deficient number, since it is larger than the sum of its proper divisors (149201519).

704172505 is a wasteful number, since it uses less digits than its factorization.

704172505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394507.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 704172505 is about 26536.2488871355. The cubic root of 704172505 is about 889.6646908402.

The spelling of 704172505 in words is "seven hundred four million, one hundred seventy-two thousand, five hundred five".