7147987305 has 32 divisors (see below), whose sum is σ = 11765834496. Its totient is φ = 3703974144.

The previous prime is 7147987279. The next prime is 7147987351. The reversal of 7147987305 is 5037897417.

It is not a de Polignac number, because 7147987305 - 2⁷ = 7147987177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38239 + ... + 125531.

It is an arithmetic number, because the mean of its divisors is an integer number (367682328).

Almost surely, 2^7147987305 is an apocalyptic number.

It is an amenable number.

7147987305 is a deficient number, since it is larger than the sum of its proper divisors (4617847191).

7147987305 is a wasteful number, since it uses less digits than its factorization.

7147987305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87457.

The product of its (nonzero) digits is 1481760, while the sum is 51.

The square root of 7147987305 is about 84545.7704737499. The cubic root of 7147987305 is about 1926.3177399026.

The spelling of 7147987305 in words is "seven billion, one hundred forty-seven million, nine hundred eighty-seven thousand, three hundred five".