5120987 has 4 divisors (see below), whose sum is σ = 5129880. Its totient is φ = 5112096.

The previous prime is 5120963. The next prime is 5121007. The reversal of 5120987 is 7890215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7890215 = 5 ⋅1578043.

It is a cyclic number.

It is not a de Polignac number, because 5120987 - 2¹⁰ = 5119963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5120957) 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, 3518 + ... + 4755.

It is an arithmetic number, because the mean of its divisors is an integer number (1282470).

Almost surely, 2^5120987 is an apocalyptic number.

5120987 is a deficient number, since it is larger than the sum of its proper divisors (8893).

5120987 is an equidigital number, since it uses as much as digits as its factorization.

5120987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 5120987 is about 2262.9597875349. The cubic root of 5120987 is about 172.3658496318.

The spelling of 5120987 in words is "five million, one hundred twenty thousand, nine hundred eighty-seven".