11297989 has 8 divisors (see below), whose sum is σ = 11924640. Its totient is φ = 10674576.

The previous prime is 11297983. The next prime is 11298011. The reversal of 11297989 is 98979211.

It is a happy number.

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 11297989 - 2⁷ = 11297861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11297983) 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, 10647 + ... + 11659.

It is an arithmetic number, because the mean of its divisors is an integer number (1490580).

Almost surely, 2^11297989 is an apocalyptic number.

11297989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11297989 is a deficient number, since it is larger than the sum of its proper divisors (626651).

11297989 is a wasteful number, since it uses less digits than its factorization.

11297989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its digits is 81648, while the sum is 46.

The square root of 11297989 is about 3361.2481312750. The cubic root of 11297989 is about 224.3883900162.

The spelling of 11297989 in words is "eleven million, two hundred ninety-seven thousand, nine hundred eighty-nine".