7216249 has 4 divisors (see below), whose sum is σ = 7223040. Its totient is φ = 7209460.

The previous prime is 7216247. The next prime is 7216277. The reversal of 7216249 is 9426127.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9426127 = 163 ⋅57829.

It is a cyclic number.

It is not a de Polignac number, because 7216249 - 2¹ = 7216247 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7216249.

It is not an unprimeable number, because it can be changed into a prime (7216241) 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 in 3 ways as a sum of consecutive naturals, for example, 1417 + ... + 4054.

It is an arithmetic number, because the mean of its divisors is an integer number (1805760).

Almost surely, 2^7216249 is an apocalyptic number.

It is an amenable number.

7216249 is a deficient number, since it is larger than the sum of its proper divisors (6791).

7216249 is a wasteful number, since it uses less digits than its factorization.

7216249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790.

The product of its digits is 6048, while the sum is 31.

The square root of 7216249 is about 2686.3076890036. The cubic root of 7216249 is about 193.2430292361.

The spelling of 7216249 in words is "seven million, two hundred sixteen thousand, two hundred forty-nine".