8384661 has 16 divisors (see below), whose sum is σ = 12467520. Its totient is φ = 5569200.

The previous prime is 8384641. The next prime is 8384671. The reversal of 8384661 is 1664838.

It is a happy number.

It is not a de Polignac number, because 8384661 - 2¹³ = 8376469 is a prime.

8384661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8384611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11611 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (779220).

Almost surely, 2^8384661 is an apocalyptic number.

It is an amenable number.

8384661 is a deficient number, since it is larger than the sum of its proper divisors (4082859).

8384661 is a wasteful number, since it uses less digits than its factorization.

8384661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1147 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 8384661 is about 2895.6279111792. The cubic root of 8384661 is about 203.1554618142.

It can be divided in two parts, 8384 and 661, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 8384661 in words is "eight million, three hundred eighty-four thousand, six hundred sixty-one".