2371991347 has 32 divisors (see below), whose sum is σ = 2698665984. Its totient is φ = 2066301600.

The previous prime is 2371991299. The next prime is 2371991393. The reversal of 2371991347 is 7431991732.

It is not a de Polignac number, because 2371991347 - 2¹⁵ = 2371958579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2371991297 and 2371991306.

It is not an unprimeable number, because it can be changed into a prime (2371998347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7165972 + ... + 7166302.

It is an arithmetic number, because the mean of its divisors is an integer number (84333312).

Almost surely, 2^2371991347 is an apocalyptic number.

2371991347 is a deficient number, since it is larger than the sum of its proper divisors (326674637).

2371991347 is a wasteful number, since it uses less digits than its factorization.

2371991347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639.

The product of its digits is 285768, while the sum is 46.

The square root of 2371991347 is about 48703.0938134324. The cubic root of 2371991347 is about 1333.6371971962.

The spelling of 2371991347 in words is "two billion, three hundred seventy-one million, nine hundred ninety-one thousand, three hundred forty-seven".