7216736 has 12 divisors (see below), whose sum is σ = 14208012. Its totient is φ = 3608352.

The previous prime is 7216723. The next prime is 7216757. The reversal of 7216736 is 6376127.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 225523 = 7216736 / (7 + 2 + 1 + 6 + 7 + 3 + 6).

It is a congruent number.

It is an unprimeable number.

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, 112730 + ... + 112793.

It is an arithmetic number, because the mean of its divisors is an integer number (1184001).

Almost surely, 2^7216736 is an apocalyptic number.

It is an amenable number.

7216736 is a deficient number, since it is larger than the sum of its proper divisors (6991276).

7216736 is a wasteful number, since it uses less digits than its factorization.

7216736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225533 (or 225525 counting only the distinct ones).

The product of its digits is 10584, while the sum is 32.

The square root of 7216736 is about 2686.3983323402. The cubic root of 7216736 is about 193.2473762423.

The spelling of 7216736 in words is "seven million, two hundred sixteen thousand, seven hundred thirty-six".