7243816 has 8 divisors (see below), whose sum is σ = 13582170. Its totient is φ = 3621904.

The previous prime is 7243787. The next prime is 7243837. The reversal of 7243816 is 6183427.

It can be written as a sum of positive squares in only one way, i.e., 5152900 + 2090916 = 2270^2 + 1446^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452731 + ... + 452746.

Almost surely, 2^7243816 is an apocalyptic number.

It is an amenable number.

7243816 is a deficient number, since it is larger than the sum of its proper divisors (6338354).

7243816 is a wasteful number, since it uses less digits than its factorization.

7243816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905483 (or 905479 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 7243816 is about 2691.4338186179. The cubic root of 7243816 is about 193.4887876398.

The spelling of 7243816 in words is "seven million, two hundred forty-three thousand, eight hundred sixteen".