1089497 has 2 divisors, whose sum is σ = 1089498. Its totient is φ = 1089496.

The previous prime is 1089481. The next prime is 1089503. The reversal of 1089497 is 7949801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 913936 + 175561 = 956^2 + 419^2 .

It is an emirp because it is prime and its reverse (7949801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1089497 - 2⁴ = 1089481 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1089497.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544748 + 544749.

It is an arithmetic number, because the mean of its divisors is an integer number (544749).

2^1089497 is an apocalyptic number.

It is an amenable number.

1089497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089497 is an equidigital number, since it uses as much as digits as its factorization.

1089497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1089497 is about 1043.7897297828. The cubic root of 1089497 is about 102.8984136813.

The spelling of 1089497 in words is "one million, eighty-nine thousand, four hundred ninety-seven".