7488989 has 4 divisors (see below), whose sum is σ = 7747260. Its totient is φ = 7230720.

The previous prime is 7488973. The next prime is 7488991. The reversal of 7488989 is 9898847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5712100 + 1776889 = 2390^2 + 1333^2 .

It is a cyclic number.

It is not a de Polignac number, because 7488989 - 2⁴ = 7488973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7488989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7488289) 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 3 ways as a sum of consecutive naturals, for example, 129092 + ... + 129149.

It is an arithmetic number, because the mean of its divisors is an integer number (1936815).

Almost surely, 2^7488989 is an apocalyptic number.

It is an amenable number.

7488989 is a deficient number, since it is larger than the sum of its proper divisors (258271).

7488989 is a wasteful number, since it uses less digits than its factorization.

7488989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258270.

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

The square root of 7488989 is about 2736.6017247674. The cubic root of 7488989 is about 195.6475426801.

The spelling of 7488989 in words is "seven million, four hundred eighty-eight thousand, nine hundred eighty-nine".