8701861 has 6 divisors (see below), whose sum is σ = 10122630. Its totient is φ = 7458696.

The previous prime is 8701853. The next prime is 8701871. The reversal of 8701861 is 1681078.

It can be written as a sum of positive squares in only one way, i.e., 5832225 + 2869636 = 2415^2 + 1694^2 .

It is not a de Polignac number, because 8701861 - 2³ = 8701853 is a prime.

8701861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8701811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88746 + ... + 88843.

It is an arithmetic number, because the mean of its divisors is an integer number (1687105).

Almost surely, 2^8701861 is an apocalyptic number.

It is an amenable number.

8701861 is a deficient number, since it is larger than the sum of its proper divisors (1420769).

8701861 is a wasteful number, since it uses less digits than its factorization.

8701861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177603 (or 177596 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 8701861 is about 2949.8916929270. The cubic root of 8701861 is about 205.6856754698.

The spelling of 8701861 in words is "eight million, seven hundred one thousand, eight hundred sixty-one".