7642241 has 2 divisors, whose sum is σ = 7642242. Its totient is φ = 7642240.

The previous prime is 7642183. The next prime is 7642249. The reversal of 7642241 is 1422467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7311616 + 330625 = 2704^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7642241 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7642241.

It is not a weakly prime, because it can be changed into another prime (7642249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3821120 + 3821121.

It is an arithmetic number, because the mean of its divisors is an integer number (3821121).

Almost surely, 2^7642241 is an apocalyptic number.

It is an amenable number.

7642241 is a deficient number, since it is larger than the sum of its proper divisors (1).

7642241 is an equidigital number, since it uses as much as digits as its factorization.

7642241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 7642241 is about 2764.4603451668. The cubic root of 7642241 is about 196.9730953492.

The spelling of 7642241 in words is "seven million, six hundred forty-two thousand, two hundred forty-one".