8413861 has 4 divisors (see below), whose sum is σ = 8908812. Its totient is φ = 7918912.

The previous prime is 8413859. The next prime is 8413891. The reversal of 8413861 is 1683148.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4536900 + 3876961 = 2130^2 + 1969^2 .

It is a cyclic number.

It is not a de Polignac number, because 8413861 - 2¹ = 8413859 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 (8413831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247450 + ... + 247483.

It is an arithmetic number, because the mean of its divisors is an integer number (2227203).

Almost surely, 2^8413861 is an apocalyptic number.

It is an amenable number.

8413861 is a deficient number, since it is larger than the sum of its proper divisors (494951).

8413861 is a wasteful number, since it uses less digits than its factorization.

8413861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494950.

The product of its digits is 4608, while the sum is 31.

The square root of 8413861 is about 2900.6656132688. The cubic root of 8413861 is about 203.3910215843.

The spelling of 8413861 in words is "eight million, four hundred thirteen thousand, eight hundred sixty-one".