410991 has 8 divisors (see below), whose sum is σ = 626304. Its totient is φ = 234840.

The previous prime is 410983. The next prime is 410999. The reversal of 410991 is 199014.

It is an interprime number because it is at equal distance from previous prime (410983) and next prime (410999).

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

It is not a de Polignac number, because 410991 - 2³ = 410983 is a prime.

410991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (410999) 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, 9765 + ... + 9806.

It is an arithmetic number, because the mean of its divisors is an integer number (78288).

2⁴¹⁰⁹⁹¹ is an apocalyptic number.

410991 is a deficient number, since it is larger than the sum of its proper divisors (215313).

410991 is a wasteful number, since it uses less digits than its factorization.

410991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19581.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 410991 is about 641.0857976901. The cubic root of 410991 is about 74.3493947119.

The spelling of 410991 in words is "four hundred ten thousand, nine hundred ninety-one".