1090471 has 2 divisors, whose sum is σ = 1090472.
Its totient is φ = 1090470.
The previous prime is 1090469. The next prime is 1090483. The reversal of 1090471 is 1740901.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1090471 - 21 = 1090469 is a prime.
It is a super-3 number, since 3×10904713 = 3890125532473671333, which contains 333 as substring.
Together with 1090469, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1090421) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545235 + 545236.
It is an arithmetic number, because the mean of its divisors is an integer number (545236).
21090471 is an apocalyptic number.
1090471 is a deficient number, since it is larger than the sum of its proper divisors (1).
1090471 is an equidigital number, since it uses as much as digits as its factorization.
1090471 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 252, while the sum is 22.
The square root of 1090471 is about 1044.2561946189.
The cubic root of 1090471 is about 102.9290679507.
The spelling of 1090471 in words is "one million, ninety thousand, four hundred seventy-one".