7528217 has 2 divisors, whose sum is σ = 7528218. Its totient is φ = 7528216.

The previous prime is 7528211. The next prime is 7528219. The reversal of 7528217 is 7128257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5900041 + 1628176 = 2429^2 + 1276^2 .

It is a cyclic number.

It is not a de Polignac number, because 7528217 - 2¹⁸ = 7266073 is a prime.

Together with 7528219, 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 (7528211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3764108 + 3764109.

It is an arithmetic number, because the mean of its divisors is an integer number (3764109).

Almost surely, 2^7528217 is an apocalyptic number.

It is an amenable number.

7528217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7528217 is an equidigital number, since it uses as much as digits as its factorization.

7528217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 32.

The square root of 7528217 is about 2743.7596469079. The cubic root of 7528217 is about 195.9885544476.

The spelling of 7528217 in words is "seven million, five hundred twenty-eight thousand, two hundred seventeen".