2289747 has 24 divisors (see below), whose sum is σ = 3438400. Its totient is φ = 1351296.

The previous prime is 2289743. The next prime is 2289751. The reversal of 2289747 is 7479822.

It is an interprime number because it is at equal distance from previous prime (2289743) and next prime (2289751).

It is not a de Polignac number, because 2289747 - 2² = 2289743 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 8 + 9⁵ + 7² + 4² + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2289743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16404 + ... + 16542.

2^2289747 is an apocalyptic number.

2289747 is a deficient number, since it is larger than the sum of its proper divisors (1148653).

2289747 is a wasteful number, since it uses less digits than its factorization.

2289747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 178 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 2289747 is about 1513.1909991802. The cubic root of 2289747 is about 131.8041747376.

The spelling of 2289747 in words is "two million, two hundred eighty-nine thousand, seven hundred forty-seven".