2247669 has 10 divisors (see below), whose sum is σ = 3357750. Its totient is φ = 1498392.

The previous prime is 2247659. The next prime is 2247673. The reversal of 2247669 is 9667422.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1703025 + 544644 = 1305^2 + 738^2 .

It is not a de Polignac number, because 2247669 - 2⁷ = 2247541 is a prime.

It is a super-2 number, since 2×2247669² = 10104031867122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247659) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13794 + ... + 13955.

It is an arithmetic number, because the mean of its divisors is an integer number (335775).

2^2247669 is an apocalyptic number.

It is an amenable number.

2247669 is a deficient number, since it is larger than the sum of its proper divisors (1110081).

2247669 is an equidigital number, since it uses as much as digits as its factorization.

2247669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27761 (or 27752 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2247669 is about 1499.2227986527. Note that the first 3 decimals coincide. The cubic root of 2247669 is about 130.9918026065.

It can be divided in two parts, 2247 and 669, that added together give a square (2916 = 54²).

The spelling of 2247669 in words is "two million, two hundred forty-seven thousand, six hundred sixty-nine".