1027009 has 8 divisors (see below), whose sum is σ = 1082088. Its totient is φ = 973440.

The previous prime is 1027003. The next prime is 1027027. The reversal of 1027009 is 9007201.

It can be written as a sum of positive squares in 4 ways, for example, as 418609 + 608400 = 647^2 + 780^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1027009 - 2³ = 1027001 is a prime.

It is a Duffinian number.

1027009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1027001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1179 + ... + 1855.

It is an arithmetic number, because the mean of its divisors is an integer number (135261).

2^1027009 is an apocalyptic number.

It is an amenable number.

1027009 is a deficient number, since it is larger than the sum of its proper divisors (55079).

1027009 is an equidigital number, since it uses as much as digits as its factorization.

1027009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1027009 is about 1013.4145252561. The cubic root of 1027009 is about 100.8923140732.

The spelling of 1027009 in words is "one million, twenty-seven thousand, nine".