866513461 has 8 divisors (see below), whose sum is σ = 950040000. Its totient is φ = 783779040.

The previous prime is 866513429. The next prime is 866513467. The reversal of 866513461 is 164315668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 866513461 - 2⁵ = 866513429 is a prime.

It is a super-4 number, since 4×866513461⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866513467) 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 7 ways as a sum of consecutive naturals, for example, 195736 + ... + 200113.

It is an arithmetic number, because the mean of its divisors is an integer number (118755000).

Almost surely, 2^866513461 is an apocalyptic number.

It is an amenable number.

866513461 is a deficient number, since it is larger than the sum of its proper divisors (83526539).

866513461 is a wasteful number, since it uses less digits than its factorization.

866513461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396059.

The product of its digits is 103680, while the sum is 40.

The square root of 866513461 is about 29436.6007038856. The cubic root of 866513461 is about 953.3633181950.

The spelling of 866513461 in words is "eight hundred sixty-six million, five hundred thirteen thousand, four hundred sixty-one".