2199069 has 20 divisors (see below), whose sum is σ = 3480444. Its totient is φ = 1378944.

The previous prime is 2199061. The next prime is 2199077. The reversal of 2199069 is 9609912.

It is an interprime number because it is at equal distance from previous prime (2199061) and next prime (2199077).

It can be written as a sum of positive squares in 2 ways, for example, as 1071225 + 1127844 = 1035^2 + 1062^2 .

It is not a de Polignac number, because 2199069 - 2³ = 2199061 is a prime.

It is a super-2 number, since 2×2199069² = 9671808933522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199061) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 579 + ... + 2175.

2^2199069 is an apocalyptic number.

It is an amenable number.

2199069 is a deficient number, since it is larger than the sum of its proper divisors (1281375).

2199069 is a wasteful number, since it uses less digits than its factorization.

2199069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 2199069 is about 1482.9258241733. The cubic root of 2199069 is about 130.0407958748.

The spelling of 2199069 in words is "two million, one hundred ninety-nine thousand, sixty-nine".