1026009 has 6 divisors (see below), whose sum is σ = 1482026. Its totient is φ = 684000.

The previous prime is 1025957. The next prime is 1026029. The reversal of 1026009 is 9006201.

It can be written as a sum of positive squares in only one way, i.e., 944784 + 81225 = 972^2 + 285^2 .

It is not a de Polignac number, because 1026009 - 2¹³ = 1017817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025982 and 1026000.

It is not an unprimeable number, because it can be changed into a prime (1026029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56992 + ... + 57009.

2^1026009 is an apocalyptic number.

It is an amenable number.

1026009 is a deficient number, since it is larger than the sum of its proper divisors (456017).

1026009 is a wasteful number, since it uses less digits than its factorization.

1026009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114007 (or 114004 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1026009 is about 1012.9210235749. The cubic root of 1026009 is about 100.8595571132.

The spelling of 1026009 in words is "one million, twenty-six thousand, nine".