2269691 has 4 divisors (see below), whose sum is σ = 2331072. Its totient is φ = 2208312.

The previous prime is 2269661. The next prime is 2269699. The reversal of 2269691 is 1969622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2269691 is a prime.

It is a d-powerful number, because it can be written as 2³ + 2²¹ + 6⁵ + 9⁵ + 6⁶ + 9⁵ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2269699) 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, 30635 + ... + 30708.

It is an arithmetic number, because the mean of its divisors is an integer number (582768).

2^2269691 is an apocalyptic number.

2269691 is a deficient number, since it is larger than the sum of its proper divisors (61381).

2269691 is an equidigital number, since it uses as much as digits as its factorization.

2269691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61380.

The product of its digits is 11664, while the sum is 35.

The square root of 2269691 is about 1506.5493685904. The cubic root of 2269691 is about 131.4182193777.

The spelling of 2269691 in words is "two million, two hundred sixty-nine thousand, six hundred ninety-one".