4691388239 has 2 divisors, whose sum is σ = 4691388240. Its totient is φ = 4691388238.

The previous prime is 4691388217. The next prime is 4691388241. The reversal of 4691388239 is 9328831964.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4691388239 is a prime.

It is a super-2 number, since 2×4691388239² = 44018247218055042242, which contains 22 as substring.

Together with 4691388241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4691388209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2345694119 + 2345694120.

It is an arithmetic number, because the mean of its divisors is an integer number (2345694120).

Almost surely, 2^4691388239 is an apocalyptic number.

4691388239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4691388239 is an equidigital number, since it uses as much as digits as its factorization.

4691388239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 53.

The square root of 4691388239 is about 68493.7094848863. The cubic root of 4691388239 is about 1674.0449878166.

The spelling of 4691388239 in words is "four billion, six hundred ninety-one million, three hundred eighty-eight thousand, two hundred thirty-nine".