705728541 has 16 divisors (see below), whose sum is σ = 1078798464. Its totient is φ = 401997504.

The previous prime is 705728503. The next prime is 705728561. The reversal of 705728541 is 145827507.

It is not a de Polignac number, because 705728541 - 2⁹ = 705728029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 705728541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705728501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46350 + ... + 59663.

It is an arithmetic number, because the mean of its divisors is an integer number (67424904).

Almost surely, 2^705728541 is an apocalyptic number.

It is an amenable number.

705728541 is a deficient number, since it is larger than the sum of its proper divisors (373069923).

705728541 is a wasteful number, since it uses less digits than its factorization.

705728541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106340.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 705728541 is about 26565.5517729258. The cubic root of 705728541 is about 890.3195170576.

The spelling of 705728541 in words is "seven hundred five million, seven hundred twenty-eight thousand, five hundred forty-one".