7520987 has 8 divisors (see below), whose sum is σ = 8133696. Its totient is φ = 6927232.

The previous prime is 7520969. The next prime is 7520993. The reversal of 7520987 is 7890257.

7520987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7520987 - 2¹² = 7516891 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 7520987.

It is not an unprimeable number, because it can be changed into a prime (7520927) 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 7 ways as a sum of consecutive naturals, for example, 3908 + ... + 5505.

It is an arithmetic number, because the mean of its divisors is an integer number (1016712).

Almost surely, 2^7520987 is an apocalyptic number.

7520987 is a deficient number, since it is larger than the sum of its proper divisors (612709).

7520987 is a wasteful number, since it uses less digits than its factorization.

7520987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9477.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 7520987 is about 2742.4417951891. The cubic root of 7520987 is about 195.9257927466.

The spelling of 7520987 in words is "seven million, five hundred twenty thousand, nine hundred eighty-seven".