11649489 has 8 divisors (see below), whose sum is σ = 16350240. Its totient is φ = 7357536.

The previous prime is 11649481. The next prime is 11649493. The reversal of 11649489 is 98494611.

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

It is not a de Polignac number, because 11649489 - 2³ = 11649481 is a prime.

It is a super-2 number, since 2×11649489² = 271421187922242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11649489.

It is not an unprimeable number, because it can be changed into a prime (11649481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102132 + ... + 102245.

It is an arithmetic number, because the mean of its divisors is an integer number (2043780).

Almost surely, 2^11649489 is an apocalyptic number.

11649489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11649489 is a deficient number, since it is larger than the sum of its proper divisors (4700751).

11649489 is a wasteful number, since it uses less digits than its factorization.

11649489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204399.

The product of its digits is 62208, while the sum is 42.

The square root of 11649489 is about 3413.1347761259. The cubic root of 11649489 is about 226.6917030688.

The spelling of 11649489 in words is "eleven million, six hundred forty-nine thousand, four hundred eighty-nine".