4342649 has 2 divisors, whose sum is σ = 4342650. Its totient is φ = 4342648.

The previous prime is 4342631. The next prime is 4342687. The reversal of 4342649 is 9462434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4020025 + 322624 = 2005^2 + 568^2 .

It is a cyclic number.

It is not a de Polignac number, because 4342649 - 2¹⁶ = 4277113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4342619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2171324 + 2171325.

It is an arithmetic number, because the mean of its divisors is an integer number (2171325).

Almost surely, 2^4342649 is an apocalyptic number.

It is an amenable number.

4342649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4342649 is an equidigital number, since it uses as much as digits as its factorization.

4342649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 4342649 is about 2083.9023489598. The cubic root of 4342649 is about 163.1491853083.

The spelling of 4342649 in words is "four million, three hundred forty-two thousand, six hundred forty-nine".