7938241 has 2 divisors, whose sum is σ = 7938242. Its totient is φ = 7938240.

The previous prime is 7938233. The next prime is 7938247. The reversal of 7938241 is 1428397.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 1199025 = 2596^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 7938241 - 2³ = 7938233 is a prime.

7938241 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7938197 and 7938206.

It is not a weakly prime, because it can be changed into another prime (7938247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3969120 + 3969121.

It is an arithmetic number, because the mean of its divisors is an integer number (3969121).

Almost surely, 2^7938241 is an apocalyptic number.

It is an amenable number.

7938241 is a deficient number, since it is larger than the sum of its proper divisors (1).

7938241 is an equidigital number, since it uses as much as digits as its factorization.

7938241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 7938241 is about 2817.4884205618. The cubic root of 7938241 is about 199.4840115913.

The spelling of 7938241 in words is "seven million, nine hundred thirty-eight thousand, two hundred forty-one".