8461861 has 8 divisors (see below), whose sum is σ = 8873280. Its totient is φ = 8054112.

The previous prime is 8461813. The next prime is 8461877. The reversal of 8461861 is 1681648.

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

It is a cyclic number.

It is not a de Polignac number, because 8461861 - 2¹¹ = 8459813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4570 + ... + 6148.

It is an arithmetic number, because the mean of its divisors is an integer number (1109160).

Almost surely, 2^8461861 is an apocalyptic number.

It is an amenable number.

8461861 is a deficient number, since it is larger than the sum of its proper divisors (411419).

8461861 is a wasteful number, since it uses less digits than its factorization.

8461861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835.

The product of its digits is 9216, while the sum is 34.

The square root of 8461861 is about 2908.9278093483. The cubic root of 8461861 is about 203.7770616571. Note that the first 3 decimals are identical.

The spelling of 8461861 in words is "eight million, four hundred sixty-one thousand, eight hundred sixty-one".