7424889 has 8 divisors (see below), whose sum is σ = 9950400. Its totient is φ = 4924656.

The previous prime is 7424887. The next prime is 7424897. The reversal of 7424889 is 9884247.

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

It is not a de Polignac number, because 7424889 - 2¹ = 7424887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7424889.

It is not an unprimeable number, because it can be changed into a prime (7424887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5622 + ... + 6815.

It is an arithmetic number, because the mean of its divisors is an integer number (1243800).

Almost surely, 2^7424889 is an apocalyptic number.

It is an amenable number.

7424889 is a deficient number, since it is larger than the sum of its proper divisors (2525511).

7424889 is a wasteful number, since it uses less digits than its factorization.

7424889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12639.

The product of its digits is 129024, while the sum is 42.

The square root of 7424889 is about 2724.8649507820. The cubic root of 7424889 is about 195.0877448636.

The spelling of 7424889 in words is "seven million, four hundred twenty-four thousand, eight hundred eighty-nine".