2730317247 has 32 divisors (see below), whose sum is σ = 4659200000. Its totient is φ = 1547882784.

The previous prime is 2730317243. The next prime is 2730317267. The reversal of 2730317247 is 7427130372.

It is a happy number.

It is not a de Polignac number, because 2730317247 - 2² = 2730317243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730317243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32872 + ... + 80877.

It is an arithmetic number, because the mean of its divisors is an integer number (145600000).

Almost surely, 2^2730317247 is an apocalyptic number.

2730317247 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2730317247 is a deficient number, since it is larger than the sum of its proper divisors (1928882753).

2730317247 is a wasteful number, since it uses less digits than its factorization.

2730317247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113892 (or 113886 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 2730317247 is about 52252.4377134694. The cubic root of 2730317247 is about 1397.6691226375.

The spelling of 2730317247 in words is "two billion, seven hundred thirty million, three hundred seventeen thousand, two hundred forty-seven".