1092989 has 2 divisors, whose sum is σ = 1092990. Its totient is φ = 1092988.

The previous prime is 1092977. The next prime is 1092991. The reversal of 1092989 is 9892901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1085764 + 7225 = 1042^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 1092989 - 2⁸ = 1092733 is a prime.

Together with 1092991, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1092919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546494 + 546495.

It is an arithmetic number, because the mean of its divisors is an integer number (546495).

2^1092989 is an apocalyptic number.

It is an amenable number.

1092989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1092989 is an equidigital number, since it uses as much as digits as its factorization.

1092989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1092989 is about 1045.4611422717. The cubic root of 1092989 is about 103.0082313464.

The spelling of 1092989 in words is "one million, ninety-two thousand, nine hundred eighty-nine".