7706643 has 8 divisors (see below), whose sum is σ = 11743488. Its totient is φ = 4403784.

The previous prime is 7706641. The next prime is 7706669. The reversal of 7706643 is 3466077.

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

It is not a de Polignac number, because 7706643 - 2¹ = 7706641 is a prime.

It is a d-powerful number, because it can be written as 7² + 7⁸ + 0 + 6 + 6⁸ + 4⁹ + 3³ .

It is not an unprimeable number, because it can be changed into a prime (7706641) 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, 183471 + ... + 183512.

It is an arithmetic number, because the mean of its divisors is an integer number (1467936).

Almost surely, 2^7706643 is an apocalyptic number.

7706643 is a deficient number, since it is larger than the sum of its proper divisors (4036845).

7706643 is a wasteful number, since it uses less digits than its factorization.

7706643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366993.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 7706643 is about 2776.0841125586. The cubic root of 7706643 is about 197.5248529318.

The spelling of 7706643 in words is "seven million, seven hundred six thousand, six hundred forty-three".