5966989 has 4 divisors (see below), whose sum is σ = 6819424. Its totient is φ = 5114556.

The previous prime is 5966971. The next prime is 5966993. The reversal of 5966989 is 9896695.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9896695 = 5 ⋅1979339.

It is a cyclic number.

It is not a de Polignac number, because 5966989 - 2⁷ = 5966861 is a prime.

It is a super-2 number, since 2×5966989² = 71209915452242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5966929) 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 3 ways as a sum of consecutive naturals, for example, 426207 + ... + 426220.

It is an arithmetic number, because the mean of its divisors is an integer number (1704856).

Almost surely, 2^5966989 is an apocalyptic number.

It is an amenable number.

5966989 is a deficient number, since it is larger than the sum of its proper divisors (852435).

5966989 is an equidigital number, since it uses as much as digits as its factorization.

5966989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852434.

The product of its digits is 1049760, while the sum is 52.

The square root of 5966989 is about 2442.7421067317. The cubic root of 5966989 is about 181.3781964250.

The spelling of 5966989 in words is "five million, nine hundred sixty-six thousand, nine hundred eighty-nine".