7049521 has 2 divisors, whose sum is σ = 7049522. Its totient is φ = 7049520.

The previous prime is 7049507. The next prime is 7049527. The reversal of 7049521 is 1259407.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4906225 + 2143296 = 2215^2 + 1464^2 .

It is a cyclic number.

It is not a de Polignac number, because 7049521 - 2⁵ = 7049489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7049521.

It is not a weakly prime, because it can be changed into another prime (7049527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3524760 + 3524761.

It is an arithmetic number, because the mean of its divisors is an integer number (3524761).

Almost surely, 2^7049521 is an apocalyptic number.

It is an amenable number.

7049521 is a deficient number, since it is larger than the sum of its proper divisors (1).

7049521 is an equidigital number, since it uses as much as digits as its factorization.

7049521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 7049521 is about 2655.0934070198. The cubic root of 7049521 is about 191.7431551889.

The spelling of 7049521 in words is "seven million, forty-nine thousand, five hundred twenty-one".