7124489 has 4 divisors (see below), whose sum is σ = 7130880. Its totient is φ = 7118100.

The previous prime is 7124483. The next prime is 7124519. The reversal of 7124489 is 9844217.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7124489 - 2⁸ = 7124233 is a prime.

It is a super-2 number, since 2×7124489² = 101516687022242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7124483) 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, 1037 + ... + 3914.

It is an arithmetic number, because the mean of its divisors is an integer number (1782720).

Almost surely, 2^7124489 is an apocalyptic number.

It is an amenable number.

7124489 is a deficient number, since it is larger than the sum of its proper divisors (6391).

7124489 is a wasteful number, since it uses less digits than its factorization.

7124489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390.

The product of its digits is 16128, while the sum is 35.

The square root of 7124489 is about 2669.1738422216. The cubic root of 7124489 is about 192.4204562572.

The spelling of 7124489 in words is "seven million, one hundred twenty-four thousand, four hundred eighty-nine".