7819216 has 10 divisors (see below), whose sum is σ = 15149762. Its totient is φ = 3909600.

The previous prime is 7819193. The next prime is 7819219. The reversal of 7819216 is 6129187.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7817616 + 1600 = 2796^2 + 40^2 .

It is a super-2 number, since 2×7819216² = 122280277709312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7819219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244335 + ... + 244366.

Almost surely, 2^7819216 is an apocalyptic number.

It is an amenable number.

7819216 is a deficient number, since it is larger than the sum of its proper divisors (7330546).

7819216 is a wasteful number, since it uses less digits than its factorization.

7819216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488709 (or 488703 counting only the distinct ones).

The product of its digits is 6048, while the sum is 34.

The square root of 7819216 is about 2796.2861083945. The cubic root of 7819216 is about 198.4819738002.

The spelling of 7819216 in words is "seven million, eight hundred nineteen thousand, two hundred sixteen".