8436987 has 36 divisors (see below), whose sum is σ = 13856760. Its totient is φ = 5071248.

The previous prime is 8436983. The next prime is 8436997. The reversal of 8436987 is 7896348.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

8436987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8436987 - 2² = 8436983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8436983) 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 35 ways as a sum of consecutive naturals, for example, 196188 + ... + 196230.

It is an arithmetic number, because the mean of its divisors is an integer number (384910).

Almost surely, 2^8436987 is an apocalyptic number.

8436987 is a deficient number, since it is larger than the sum of its proper divisors (5419773).

8436987 is a wasteful number, since it uses less digits than its factorization.

8436987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 59 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 8436987 is about 2904.6492042930. The cubic root of 8436987 is about 203.5771952462.

The spelling of 8436987 in words is "eight million, four hundred thirty-six thousand, nine hundred eighty-seven".