11002489 has 9 divisors (see below), whose sum is σ = 11476101. Its totient is φ = 10548060.

The previous prime is 11002477. The next prime is 11002499. The reversal of 11002489 is 98420011.

It is a happy number.

The square root of 11002489 is 3317.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 11002489 - 2⁵ = 11002457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11002469) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 102774 + ... + 102880.

Almost surely, 2^11002489 is an apocalyptic number.

11002489 is the 3317-th square number.

11002489 is the 1659-th centered octagonal number.

It is an amenable number.

11002489 is a deficient number, since it is larger than the sum of its proper divisors (473612).

11002489 is an frugal number, since it uses more digits than its factorization.

11002489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The cubic root of 11002489 is about 222.4147819933.

Multiplying 11002489 by its sum of digits (25), we get a square (275062225 = 16585²).

Multiplying 11002489 by its product of nonzero digits (576), we get a square (6337433664 = 79608²).

The spelling of 11002489 in words is "eleven million, two thousand, four hundred eighty-nine".