705413643 has 8 divisors (see below), whose sum is σ = 1026056256. Its totient is φ = 427523400.

The previous prime is 705413641. The next prime is 705413659. The reversal of 705413643 is 346314507.

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

It is not a de Polignac number, because 705413643 - 2¹ = 705413641 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 21376171 = 705413643 / (7 + 0 + 5 + 4 + 1 + 3 + 6 + 4 + 3).

It is not an unprimeable number, because it can be changed into a prime (705413641) 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, 10688053 + ... + 10688118.

It is an arithmetic number, because the mean of its divisors is an integer number (128257032).

Almost surely, 2^705413643 is an apocalyptic number.

705413643 is a deficient number, since it is larger than the sum of its proper divisors (320642613).

705413643 is a wasteful number, since it uses less digits than its factorization.

705413643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21376185.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 705413643 is about 26559.6243008067. The cubic root of 705413643 is about 890.1870763582.

The spelling of 705413643 in words is "seven hundred five million, four hundred thirteen thousand, six hundred forty-three".