7105661 has 8 divisors (see below), whose sum is σ = 7238400. Its totient is φ = 6974352.

The previous prime is 7105627. The next prime is 7105673. The reversal of 7105661 is 1665017.

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 7105661 - 2²² = 2911357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7105661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7105061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15116 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (904800).

Almost surely, 2^7105661 is an apocalyptic number.

It is an amenable number.

7105661 is a deficient number, since it is larger than the sum of its proper divisors (132739).

7105661 is a wasteful number, since it uses less digits than its factorization.

7105661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7105661 is about 2665.6445749574. The cubic root of 7105661 is about 192.2508025239.

It can be divided in two parts, 71056 and 61, that added together give a palindrome (71117).

The spelling of 7105661 in words is "seven million, one hundred five thousand, six hundred sixty-one".