8061861 has 8 divisors (see below), whose sum is σ = 10827040. Its totient is φ = 5335632.

The previous prime is 8061847. The next prime is 8061877. The reversal of 8061861 is 1681608.

8061861 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8061861 - 2⁷ = 8061733 is a prime.

It is a super-4 number, since 4×8061861⁴ (a number of 29 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8061841) 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, 9250 + ... + 10083.

It is an arithmetic number, because the mean of its divisors is an integer number (1353380).

Almost surely, 2^8061861 is an apocalyptic number.

It is an amenable number.

8061861 is a deficient number, since it is larger than the sum of its proper divisors (2765179).

8061861 is a wasteful number, since it uses less digits than its factorization.

8061861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19475.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8061861 is about 2839.3416490447. The cubic root of 8061861 is about 200.5141852680.

The spelling of 8061861 in words is "eight million, sixty-one thousand, eight hundred sixty-one".