8429489 has 4 divisors (see below), whose sum is σ = 8701440. Its totient is φ = 8157540.

The previous prime is 8429479. The next prime is 8429503. The reversal of 8429489 is 9849248.

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.

It is a cyclic number.

It is not a de Polignac number, because 8429489 - 2⁸ = 8429233 is a prime.

It is a super-3 number, since 3×8429489³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8429429) 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, 135929 + ... + 135990.

It is an arithmetic number, because the mean of its divisors is an integer number (2175360).

Almost surely, 2^8429489 is an apocalyptic number.

It is an amenable number.

8429489 is a deficient number, since it is larger than the sum of its proper divisors (271951).

8429489 is a wasteful number, since it uses less digits than its factorization.

8429489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271950.

The product of its digits is 165888, while the sum is 44.

The square root of 8429489 is about 2903.3582279836. The cubic root of 8429489 is about 203.5168706219.

The spelling of 8429489 in words is "eight million, four hundred twenty-nine thousand, four hundred eighty-nine".