2102669 has 8 divisors (see below), whose sum is σ = 2169720. Its totient is φ = 2036736.

The previous prime is 2102651. The next prime is 2102687. The reversal of 2102669 is 9662012.

It is an interprime number because it is at equal distance from previous prime (2102651) and next prime (2102687).

It can be written as a sum of positive squares in 4 ways, for example, as 925444 + 1177225 = 962^2 + 1085^2 .

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 2102669 - 2¹² = 2098573 is a prime.

It is a super-2 number, since 2×2102669² = 8842433847122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102629) 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, 4937 + ... + 5345.

It is an arithmetic number, because the mean of its divisors is an integer number (271215).

2^2102669 is an apocalyptic number.

It is an amenable number.

2102669 is a deficient number, since it is larger than the sum of its proper divisors (67051).

2102669 is an equidigital number, since it uses as much as digits as its factorization.

2102669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2102669 is about 1450.0582746911. The cubic root of 2102669 is about 128.1121453691.

The spelling of 2102669 in words is "two million, one hundred two thousand, six hundred sixty-nine".