789265561 has 16 divisors (see below), whose sum is σ = 928061824. Its totient is φ = 657258624.

The previous prime is 789265541. The next prime is 789265571. The reversal of 789265561 is 165562987.

It is a cyclic number.

It is not a de Polignac number, because 789265561 - 2¹¹ = 789263513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (789265541) 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, 22711 + ... + 45763.

It is an arithmetic number, because the mean of its divisors is an integer number (58003864).

Almost surely, 2^789265561 is an apocalyptic number.

It is an amenable number.

789265561 is a deficient number, since it is larger than the sum of its proper divisors (138796263).

789265561 is a wasteful number, since it uses less digits than its factorization.

789265561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23200.

The product of its digits is 907200, while the sum is 49.

The square root of 789265561 is about 28093.8705236569. The cubic root of 789265561 is about 924.1469851221.

The spelling of 789265561 in words is "seven hundred eighty-nine million, two hundred sixty-five thousand, five hundred sixty-one".