7489863 has 12 divisors (see below), whose sum is σ = 10981048. Its totient is φ = 4918320.

The previous prime is 7489849. The next prime is 7489871. The reversal of 7489863 is 3689847.

It is a happy number.

It is not a de Polignac number, because 7489863 - 2⁴ = 7489847 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 (7489463) 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 11 ways as a sum of consecutive naturals, for example, 5608 + ... + 6813.

Almost surely, 2^7489863 is an apocalyptic number.

7489863 is a deficient number, since it is larger than the sum of its proper divisors (3491185).

7489863 is a wasteful number, since it uses less digits than its factorization.

7489863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12494 (or 12491 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7489863 is about 2736.7614072111. The cubic root of 7489863 is about 195.6551533781.

The spelling of 7489863 in words is "seven million, four hundred eighty-nine thousand, eight hundred sixty-three".