731568061 has 8 divisors (see below), whose sum is σ = 872429184. Its totient is φ = 599794800.

The previous prime is 731568037. The next prime is 731568067. The reversal of 731568061 is 160865137.

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 731568061 - 2¹¹ = 731566013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 731568061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731568067) 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, 2271790 + ... + 2272111.

It is an arithmetic number, because the mean of its divisors is an integer number (109053648).

Almost surely, 2^731568061 is an apocalyptic number.

It is an amenable number.

731568061 is a deficient number, since it is larger than the sum of its proper divisors (140861123).

731568061 is a wasteful number, since it uses less digits than its factorization.

731568061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543931.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 731568061 is about 27047.5148766019. The cubic root of 731568061 is about 901.0555766955.

The spelling of 731568061 in words is "seven hundred thirty-one million, five hundred sixty-eight thousand, sixty-one".