411212491 has 4 divisors (see below), whose sum is σ = 411951312. Its totient is φ = 410473672.

The previous prime is 411212479. The next prime is 411212509. The reversal of 411212491 is 194212114.

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

It is a cyclic number.

It is not a de Polignac number, because 411212491 - 2⁷ = 411212363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (411212441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368575 + ... + 369688.

It is an arithmetic number, because the mean of its divisors is an integer number (102987828).

Almost surely, 2^411212491 is an apocalyptic number.

411212491 is a deficient number, since it is larger than the sum of its proper divisors (738821).

411212491 is an equidigital number, since it uses as much as digits as its factorization.

411212491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738820.

The product of its digits is 576, while the sum is 25.

The square root of 411212491 is about 20278.3749595474. The cubic root of 411212491 is about 743.6274842236.

The spelling of 411212491 in words is "four hundred eleven million, two hundred twelve thousand, four hundred ninety-one".