7838216 has 32 divisors (see below), whose sum is σ = 15724800. Its totient is φ = 3653760.

The previous prime is 7838213. The next prime is 7838219. The reversal of 7838216 is 6128387.

It is an interprime number because it is at equal distance from previous prime (7838213) and next prime (7838219).

It is a super-2 number, since 2×7838216² = 122875260125312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7838213) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7025 + ... + 8063.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^7838216 is an apocalyptic number.

It is an amenable number.

7838216 is an abundant number, since it is smaller than the sum of its proper divisors (7886584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7838216 is a wasteful number, since it uses less digits than its factorization.

7838216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1105 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 7838216 is about 2799.6814104466. The cubic root of 7838216 is about 198.6426082804.

The spelling of 7838216 in words is "seven million, eight hundred thirty-eight thousand, two hundred sixteen".