4644130987 has 4 divisors (see below), whose sum is σ = 4793941696. Its totient is φ = 4494320280.

The previous prime is 4644130979. The next prime is 4644130991. The reversal of 4644130987 is 7890314464.

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 4644130987 - 2³ = 4644130979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4644130937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74905308 + ... + 74905369.

It is an arithmetic number, because the mean of its divisors is an integer number (1198485424).

Almost surely, 2^4644130987 is an apocalyptic number.

4644130987 is a deficient number, since it is larger than the sum of its proper divisors (149810709).

4644130987 is a wasteful number, since it uses less digits than its factorization.

4644130987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149810708.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 4644130987 is about 68147.8612063504. The cubic root of 4644130987 is about 1668.4050158061.

The spelling of 4644130987 in words is "four billion, six hundred forty-four million, one hundred thirty thousand, nine hundred eighty-seven".