840607461 has 12 divisors (see below), whose sum is σ = 1243826220. Its totient is φ = 546736320.

The previous prime is 840607459. The next prime is 840607499. The reversal of 840607461 is 164706048.

840607461 is a `hidden beast` number, since 8 + 4 + 0 + 607 + 46 + 1 = 666.

840607461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 303804900 + 536802561 = 17430^2 + 23169^2 .

It is not a de Polignac number, because 840607461 - 2¹ = 840607459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840607421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1138666 + ... + 1139403.

It is an arithmetic number, because the mean of its divisors is an integer number (103652185).

Almost surely, 2^840607461 is an apocalyptic number.

It is an amenable number.

840607461 is a deficient number, since it is larger than the sum of its proper divisors (403218759).

840607461 is a wasteful number, since it uses less digits than its factorization.

840607461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278116 (or 2278113 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 840607461 is about 28993.2312962871. The cubic root of 840607461 is about 943.7661869013.

The spelling of 840607461 in words is "eight hundred forty million, six hundred seven thousand, four hundred sixty-one".