2287489 has 8 divisors (see below), whose sum is σ = 2351520. Its totient is φ = 2224416.

The previous prime is 2287487. The next prime is 2287501. The reversal of 2287489 is 9847822.

2287489 is nontrivially palindromic in base 6.

2287489 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2287489 - 2¹ = 2287487 is a prime.

It is a super-3 number, since 3×2287489³ = 35908585485147333507, which contains 333 as substring.

It is a Duffinian number.

2287489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2287487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7942 + ... + 8224.

It is an arithmetic number, because the mean of its divisors is an integer number (293940).

2^2287489 is an apocalyptic number.

It is an amenable number.

2287489 is a deficient number, since it is larger than the sum of its proper divisors (64031).

2287489 is a wasteful number, since it uses less digits than its factorization.

2287489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its digits is 64512, while the sum is 40.

The square root of 2287489 is about 1512.4447097332. Note that the first 3 decimals coincide. The cubic root of 2287489 is about 131.7608349117.

The spelling of 2287489 in words is "two million, two hundred eighty-seven thousand, four hundred eighty-nine".