705250321 has 8 divisors (see below), whose sum is σ = 748776960. Its totient is φ = 661950528.

The previous prime is 705250319. The next prime is 705250327. The reversal of 705250321 is 123052507.

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 705250321 - 2¹ = 705250319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705250327) 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, 50281 + ... + 62758.

It is an arithmetic number, because the mean of its divisors is an integer number (93597120).

Almost surely, 2^705250321 is an apocalyptic number.

It is an amenable number.

705250321 is a deficient number, since it is larger than the sum of its proper divisors (43526639).

705250321 is a wasteful number, since it uses less digits than its factorization.

705250321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113423.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 705250321 is about 26556.5494934865. The cubic root of 705250321 is about 890.1183704025.

The spelling of 705250321 in words is "seven hundred five million, two hundred fifty thousand, three hundred twenty-one".