705640315 has 8 divisors (see below), whose sum is σ = 859407120. Its totient is φ = 556086432.

The previous prime is 705640307. The next prime is 705640319. The reversal of 705640315 is 513046507.

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 705640315 - 2³ = 705640307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (705640319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052860 + ... + 1053529.

It is an arithmetic number, because the mean of its divisors is an integer number (107425890).

Almost surely, 2^705640315 is an apocalyptic number.

705640315 is a deficient number, since it is larger than the sum of its proper divisors (153766805).

705640315 is a wasteful number, since it uses less digits than its factorization.

705640315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106461.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 705640315 is about 26563.8911870983. The cubic root of 705640315 is about 890.2824146882.

The spelling of 705640315 in words is "seven hundred five million, six hundred forty thousand, three hundred fifteen".