41587661 has 4 divisors (see below), whose sum is σ = 44034012. Its totient is φ = 39141312.

The previous prime is 41587633. The next prime is 41587681. The reversal of 41587661 is 16678514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38365636 + 3222025 = 6194^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 41587661 - 2⁶ = 41587597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41587631) 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, 1223150 + ... + 1223183.

It is an arithmetic number, because the mean of its divisors is an integer number (11008503).

Almost surely, 2^41587661 is an apocalyptic number.

It is an amenable number.

41587661 is a deficient number, since it is larger than the sum of its proper divisors (2446351).

41587661 is a wasteful number, since it uses less digits than its factorization.

41587661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446350.

The product of its digits is 40320, while the sum is 38.

The square root of 41587661 is about 6448.8495873295. The cubic root of 41587661 is about 346.4613806579.

The spelling of 41587661 in words is "forty-one million, five hundred eighty-seven thousand, six hundred sixty-one".