7705641 has 8 divisors (see below), whose sum is σ = 10878624. Its totient is φ = 4834880.

The previous prime is 7705609. The next prime is 7705651. The reversal of 7705641 is 1465077.

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 7705641 - 2⁵ = 7705609 is a prime.

It is a Curzon number.

7705641 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7705599 and 7705608.

It is not an unprimeable number, because it can be changed into a prime (7705601) 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, 75495 + ... + 75596.

It is an arithmetic number, because the mean of its divisors is an integer number (1359828).

Almost surely, 2^7705641 is an apocalyptic number.

It is an amenable number.

7705641 is a deficient number, since it is larger than the sum of its proper divisors (3172983).

7705641 is a wasteful number, since it uses less digits than its factorization.

7705641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151111.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 7705641 is about 2775.9036366560. The cubic root of 7705641 is about 197.5162919851.

The spelling of 7705641 in words is "seven million, seven hundred five thousand, six hundred forty-one".