2690009 has 4 divisors (see below), whose sum is σ = 3074304. Its totient is φ = 2305716.

The previous prime is 2690003. The next prime is 2690021. The reversal of 2690009 is 9000962.

2690009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2690009 - 2¹² = 2685913 is a prime.

It is a super-2 number, since 2×2690009² = 14472296840162, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2690009.

It is not an unprimeable number, because it can be changed into a prime (2690003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192137 + ... + 192150.

It is an arithmetic number, because the mean of its divisors is an integer number (768576).

2^2690009 is an apocalyptic number.

It is an amenable number.

2690009 is a deficient number, since it is larger than the sum of its proper divisors (384295).

2690009 is an equidigital number, since it uses as much as digits as its factorization.

2690009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384294.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2690009 is about 1640.1246903818. The cubic root of 2690009 is about 139.0756967403.

The spelling of 2690009 in words is "two million, six hundred ninety thousand, nine".