4244665987 has 8 divisors (see below), whose sum is σ = 4471765200. Its totient is φ = 4017936384.

The previous prime is 4244665967. The next prime is 4244665993. The reversal of 4244665987 is 7895664424.

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

It is a de Polignac number, because none of the positive numbers 2^k-4244665987 is a prime.

It is a super-3 number, since 3×4244665987³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4244665967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68662 + ... + 114907.

It is an arithmetic number, because the mean of its divisors is an integer number (558970650).

Almost surely, 2^4244665987 is an apocalyptic number.

4244665987 is a deficient number, since it is larger than the sum of its proper divisors (227099213).

4244665987 is a wasteful number, since it uses less digits than its factorization.

4244665987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184805.

The product of its digits is 11612160, while the sum is 55.

The square root of 4244665987 is about 65151.1011956053. The cubic root of 4244665987 is about 1619.1279647282.

The spelling of 4244665987 in words is "four billion, two hundred forty-four million, six hundred sixty-five thousand, nine hundred eighty-seven".