862747461 has 24 divisors (see below), whose sum is σ = 1297547160. Its totient is φ = 551923200.

The previous prime is 862747447. The next prime is 862747469. The reversal of 862747461 is 164747268.

It can be written as a sum of positive squares in 4 ways, for example, as 35034561 + 827712900 = 5919^2 + 28770^2 .

It is not a de Polignac number, because 862747461 - 2¹⁷ = 862616389 is a prime.

It is a super-3 number, since 3×862747461³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862747469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3345 + ... + 41673.

It is an arithmetic number, because the mean of its divisors is an integer number (54064465).

Almost surely, 2^862747461 is an apocalyptic number.

It is an amenable number.

862747461 is a deficient number, since it is larger than the sum of its proper divisors (434799699).

862747461 is a wasteful number, since it uses less digits than its factorization.

862747461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38437 (or 38434 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 862747461 is about 29372.5630648740. The cubic root of 862747461 is about 951.9801581940.

The spelling of 862747461 in words is "eight hundred sixty-two million, seven hundred forty-seven thousand, four hundred sixty-one".