7216507 has 2 divisors, whose sum is σ = 7216508. Its totient is φ = 7216506.

The previous prime is 7216493. The next prime is 7216513. The reversal of 7216507 is 7056127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7216507 - 2¹⁵ = 7183739 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (7216537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608253 + 3608254.

It is an arithmetic number, because the mean of its divisors is an integer number (3608254).

Almost surely, 2^7216507 is an apocalyptic number.

7216507 is a deficient number, since it is larger than the sum of its proper divisors (1).

7216507 is an equidigital number, since it uses as much as digits as its factorization.

7216507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 7216507 is about 2686.3557098791. The cubic root of 7216507 is about 193.2453321919.

The spelling of 7216507 in words is "seven million, two hundred sixteen thousand, five hundred seven".