7386643 has 8 divisors (see below), whose sum is σ = 8276400. Its totient is φ = 6533280.

The previous prime is 7386641. The next prime is 7386667. The reversal of 7386643 is 3466837.

It is a happy number.

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 7386643 - 2¹ = 7386641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a d-powerful number, because it can be written as 7⁸ + 3⁹ + 8 + 6² + 6⁵ + 4² + 3¹³ .

It is not an unprimeable number, because it can be changed into a prime (7386641) 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 7 ways as a sum of consecutive naturals, for example, 8668 + ... + 9481.

It is an arithmetic number, because the mean of its divisors is an integer number (1034550).

Almost surely, 2^7386643 is an apocalyptic number.

7386643 is a deficient number, since it is larger than the sum of its proper divisors (889757).

7386643 is a wasteful number, since it uses less digits than its factorization.

7386643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18197.

The product of its digits is 72576, while the sum is 37.

The square root of 7386643 is about 2717.8379274710. The cubic root of 7386643 is about 194.7521989312.

It can be divided in two parts, 738 and 6643, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 7386643 in words is "seven million, three hundred eighty-six thousand, six hundred forty-three".