2187339347 has 4 divisors (see below), whose sum is σ = 2187445080. Its totient is φ = 2187233616.

The previous prime is 2187339331. The next prime is 2187339389. The reversal of 2187339347 is 7439337812.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2187339347 - 2⁴ = 2187339331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2187339547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10538 + ... + 66975.

It is an arithmetic number, because the mean of its divisors is an integer number (546861270).

Almost surely, 2^2187339347 is an apocalyptic number.

2187339347 is a deficient number, since it is larger than the sum of its proper divisors (105733).

2187339347 is an equidigital number, since it uses as much as digits as its factorization.

2187339347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105732.

The product of its digits is 762048, while the sum is 47.

The square root of 2187339347 is about 46768.9998503282. Note that the first 3 decimals coincide. The cubic root of 2187339347 is about 1298.0917460275.

The spelling of 2187339347 in words is "two billion, one hundred eighty-seven million, three hundred thirty-nine thousand, three hundred forty-seven".