705280733 has 4 divisors (see below), whose sum is σ = 705344928. Its totient is φ = 705216540.

The previous prime is 705280727. The next prime is 705280739. The reversal of 705280733 is 337082507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (705280727) and next prime (705280739).

It is a cyclic number.

It is not a de Polignac number, because 705280733 - 2¹⁰ = 705279709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 705280693 and 705280702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705280739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10991 + ... + 39132.

It is an arithmetic number, because the mean of its divisors is an integer number (176336232).

Almost surely, 2^705280733 is an apocalyptic number.

It is an amenable number.

705280733 is a deficient number, since it is larger than the sum of its proper divisors (64195).

705280733 is a wasteful number, since it uses less digits than its factorization.

705280733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64194.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 705280733 is about 26557.1220767613. The cubic root of 705280733 is about 890.1311648624.

The spelling of 705280733 in words is "seven hundred five million, two hundred eighty thousand, seven hundred thirty-three".