7498889 has 4 divisors (see below), whose sum is σ = 7505556. Its totient is φ = 7492224.

The previous prime is 7498879. The next prime is 7498903. The reversal of 7498889 is 9888947.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 697225 = 2608^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 7498889 - 2²⁰ = 6450313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7498889.

It is not an unprimeable number, because it can be changed into a prime (7498879) 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, 1184 + ... + 4049.

It is an arithmetic number, because the mean of its divisors is an integer number (1876389).

Almost surely, 2^7498889 is an apocalyptic number.

It is an amenable number.

7498889 is a deficient number, since it is larger than the sum of its proper divisors (6667).

7498889 is a wasteful number, since it uses less digits than its factorization.

7498889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6666.

The product of its digits is 1161216, while the sum is 53.

The square root of 7498889 is about 2738.4099400930. The cubic root of 7498889 is about 195.7337162079.

The spelling of 7498889 in words is "seven million, four hundred ninety-eight thousand, eight hundred eighty-nine".