7987545 has 16 divisors (see below), whose sum is σ = 14200320. Its totient is φ = 4259952.

The previous prime is 7987541. The next prime is 7987559. The reversal of 7987545 is 5457897.

It is not a de Polignac number, because 7987545 - 2² = 7987541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 7987545.

It is not an unprimeable number, because it can be changed into a prime (7987541) 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 15 ways as a sum of consecutive naturals, for example, 29449 + ... + 29718.

It is an arithmetic number, because the mean of its divisors is an integer number (887520).

Almost surely, 2^7987545 is an apocalyptic number.

It is an amenable number.

7987545 is a deficient number, since it is larger than the sum of its proper divisors (6212775).

7987545 is a wasteful number, since it uses less digits than its factorization.

7987545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59181 (or 59175 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 7987545 is about 2826.2245133747. The cubic root of 7987545 is about 199.8961544231.

The spelling of 7987545 in words is "seven million, nine hundred eighty-seven thousand, five hundred forty-five".