1090597 has 2 divisors, whose sum is σ = 1090598.
Its totient is φ = 1090596.
The previous prime is 1090589. The next prime is 1090613. The reversal of 1090597 is 7950901.
It can be divided in two parts, 10905 and 97, that multiplied together give a triangular number (1057785 = T1454).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 682276 + 408321 = 826^2 + 639^2
It is a cyclic number.
It is not a de Polignac number, because 1090597 - 23 = 1090589 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1090577) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545298 + 545299.
It is an arithmetic number, because the mean of its divisors is an integer number (545299).
21090597 is an apocalyptic number.
It is an amenable number.
1090597 is a deficient number, since it is larger than the sum of its proper divisors (1).
1090597 is an equidigital number, since it uses as much as digits as its factorization.
1090597 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2835, while the sum is 31.
The square root of 1090597 is about 1044.3165228991.
The cubic root of 1090597 is about 102.9330321592.
The spelling of 1090597 in words is "one million, ninety thousand, five hundred ninety-seven".