2196969 has 4 divisors (see below), whose sum is σ = 2929296. Its totient is φ = 1464644.

The previous prime is 2196967. The next prime is 2196977. The reversal of 2196969 is 9696912.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 2196969 - 2¹ = 2196967 is a prime.

It is a super-2 number, since 2×2196969² = 9653345573922, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2196969.

It is not an unprimeable number, because it can be changed into a prime (2196967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366159 + ... + 366164.

It is an arithmetic number, because the mean of its divisors is an integer number (732324).

2^2196969 is an apocalyptic number.

It is an amenable number.

2196969 is a deficient number, since it is larger than the sum of its proper divisors (732327).

2196969 is an equidigital number, since it uses as much as digits as its factorization.

2196969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732326.

The product of its digits is 52488, while the sum is 42.

The square root of 2196969 is about 1482.2175953618. The cubic root of 2196969 is about 129.9993885573. Note that the first 3 decimals are identical.

The spelling of 2196969 in words is "two million, one hundred ninety-six thousand, nine hundred sixty-nine".