1009669 has 2 divisors, whose sum is σ = 1009670. Its totient is φ = 1009668.

The previous prime is 1009651. The next prime is 1009727. The reversal of 1009669 is 9669001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 580644 + 429025 = 762^2 + 655^2 .

It is an emirp because it is prime and its reverse (9669001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1009669 - 2⁵ = 1009637 is a prime.

It is a super-2 number, since 2×1009669² = 2038862979122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1009669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504834 + 504835.

It is an arithmetic number, because the mean of its divisors is an integer number (504835).

2^1009669 is an apocalyptic number.

It is an amenable number.

1009669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009669 is an equidigital number, since it uses as much as digits as its factorization.

1009669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1009669 is about 1004.8228699627. The cubic root of 1009669 is about 100.3212667713.

The spelling of 1009669 in words is "one million, nine thousand, six hundred sixty-nine".