861417741 has 16 divisors (see below), whose sum is σ = 1164409344. Its totient is φ = 566376624.

The previous prime is 861417721. The next prime is 861417743. The reversal of 861417741 is 147714168.

It is not a de Polignac number, because 861417741 - 2²⁹ = 324546829 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 861417741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861417743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158430 + ... + 163776.

It is an arithmetic number, because the mean of its divisors is an integer number (72775584).

Almost surely, 2^861417741 is an apocalyptic number.

It is an amenable number.

861417741 is a deficient number, since it is larger than the sum of its proper divisors (302991603).

861417741 is a wasteful number, since it uses less digits than its factorization.

861417741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080.

The product of its digits is 37632, while the sum is 39.

The square root of 861417741 is about 29349.9189266342. The cubic root of 861417741 is about 951.4908230506.

The spelling of 861417741 in words is "eight hundred sixty-one million, four hundred seventeen thousand, seven hundred forty-one".