7216803 has 36 divisors (see below), whose sum is σ = 12007240. Its totient is φ = 4280760.

The previous prime is 7216801. The next prime is 7216837. The reversal of 7216803 is 3086127.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 7216803 - 2¹ = 7216801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7216801) 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 35 ways as a sum of consecutive naturals, for example, 153526 + ... + 153572.

Almost surely, 2^7216803 is an apocalyptic number.

7216803 is a deficient number, since it is larger than the sum of its proper divisors (4790437).

7216803 is a wasteful number, since it uses less digits than its factorization.

7216803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 7216803 is about 2686.4108025393. The cubic root of 7216803 is about 193.2479742751.

Multiplying 7216803 by its sum of digits (27), we get a square (194853681 = 13959²).

7216803 divided by its sum of digits (27) gives a square (267289 = 517²).

The spelling of 7216803 in words is "seven million, two hundred sixteen thousand, eight hundred three".