7031641 has 2 divisors, whose sum is σ = 7031642. Its totient is φ = 7031640.

The previous prime is 7031639. The next prime is 7031671. The reversal of 7031641 is 1461307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3686400 + 3345241 = 1920^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 7031641 - 2¹ = 7031639 is a prime.

Together with 7031639, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (7031621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3515820 + 3515821.

It is an arithmetic number, because the mean of its divisors is an integer number (3515821).

Almost surely, 2^7031641 is an apocalyptic number.

It is an amenable number.

7031641 is a deficient number, since it is larger than the sum of its proper divisors (1).

7031641 is an equidigital number, since it uses as much as digits as its factorization.

7031641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7031641 is about 2651.7241560917. The cubic root of 7031641 is about 191.5809091672.

Adding to 7031641 its reverse (1461307), we get a palindrome (8492948).

The spelling of 7031641 in words is "seven million, thirty-one thousand, six hundred forty-one".