4342991 has 2 divisors, whose sum is σ = 4342992. Its totient is φ = 4342990.

The previous prime is 4342969. The next prime is 4342993. The reversal of 4342991 is 1992434.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4342991 - 2⁶ = 4342927 is a prime.

Together with 4342993, 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 (4342993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2171495 + 2171496.

It is an arithmetic number, because the mean of its divisors is an integer number (2171496).

Almost surely, 2^4342991 is an apocalyptic number.

4342991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4342991 is an equidigital number, since it uses as much as digits as its factorization.

4342991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 4342991 is about 2083.9844049321. The cubic root of 4342991 is about 163.1534680673.

It can be divided in two parts, 43 and 42991, that added together give a palindrome (43034).

The spelling of 4342991 in words is "four million, three hundred forty-two thousand, nine hundred ninety-one".