7289663387 has 8 divisors (see below), whose sum is σ = 7701480000. Its totient is φ = 6888543424.

The previous prime is 7289663383. The next prime is 7289663431. The reversal of 7289663387 is 7833669827.

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

It is a cyclic number.

It is not a de Polignac number, because 7289663387 - 2² = 7289663383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7289663383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672762 + ... + 2675487.

It is an arithmetic number, because the mean of its divisors is an integer number (962685000).

Almost surely, 2^7289663387 is an apocalyptic number.

7289663387 is a deficient number, since it is larger than the sum of its proper divisors (411816613).

7289663387 is a wasteful number, since it uses less digits than its factorization.

7289663387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348325.

The product of its digits is 18289152, while the sum is 59.

The square root of 7289663387 is about 85379.5255725868. The cubic root of 7289663387 is about 1938.9613765066.

The spelling of 7289663387 in words is "seven billion, two hundred eighty-nine million, six hundred sixty-three thousand, three hundred eighty-seven".