7987449 has 16 divisors (see below), whose sum is σ = 11020608. Its totient is φ = 5141952.

The previous prime is 7987439. The next prime is 7987457. The reversal of 7987449 is 9447897.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-7987449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7987398 and 7987407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25039 + ... + 25355.

It is an arithmetic number, because the mean of its divisors is an integer number (688788).

Almost surely, 2^7987449 is an apocalyptic number.

It is an amenable number.

7987449 is a deficient number, since it is larger than the sum of its proper divisors (3033159).

7987449 is a wasteful number, since it uses less digits than its factorization.

7987449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its digits is 508032, while the sum is 48.

The square root of 7987449 is about 2826.2075295349. The cubic root of 7987449 is about 199.8953535885.

The spelling of 7987449 in words is "seven million, nine hundred eighty-seven thousand, four hundred forty-nine".