7041661 has 4 divisors (see below), whose sum is σ = 7681824. Its totient is φ = 6401500.

The previous prime is 7041649. The next prime is 7041679. The reversal of 7041661 is 1661407.

7041661 = T₁₁₂₆ + T₁₁₂₇ + ... + T₁₁₃₆.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7041661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7041631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320065 + ... + 320086.

It is an arithmetic number, because the mean of its divisors is an integer number (1920456).

Almost surely, 2^7041661 is an apocalyptic number.

It is an amenable number.

7041661 is a deficient number, since it is larger than the sum of its proper divisors (640163).

7041661 is a wasteful number, since it uses less digits than its factorization.

7041661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640162.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 7041661 is about 2653.6128202886. The cubic root of 7041661 is about 191.6718661055.

The spelling of 7041661 in words is "seven million, forty-one thousand, six hundred sixty-one".