4328785987 has 4 divisors (see below), whose sum is σ = 4329079360. Its totient is φ = 4328492616.

The previous prime is 4328785969. The next prime is 4328786003. The reversal of 4328785987 is 7895878234.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4328785987 - 2⁷ = 4328785859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4328785187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123312 + ... + 154477.

It is an arithmetic number, because the mean of its divisors is an integer number (1082269840).

Almost surely, 2^4328785987 is an apocalyptic number.

4328785987 is a deficient number, since it is larger than the sum of its proper divisors (293373).

4328785987 is a wasteful number, since it uses less digits than its factorization.

4328785987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293372.

The product of its digits is 27095040, while the sum is 61.

The square root of 4328785987 is about 65793.5102194738. The cubic root of 4328785987 is about 1629.7539351545.

The spelling of 4328785987 in words is "four billion, three hundred twenty-eight million, seven hundred eighty-five thousand, nine hundred eighty-seven".