7938168 has 32 divisors (see below), whose sum is σ = 22680960. Its totient is φ = 2268000.

The previous prime is 7938163. The next prime is 7938173. The reversal of 7938168 is 8618397.

It is an interprime number because it is at equal distance from previous prime (7938163) and next prime (7938173).

It is a super-2 number, since 2×7938168² = 126029022392448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23458 + ... + 23793.

It is an arithmetic number, because the mean of its divisors is an integer number (708780).

Almost surely, 2^7938168 is an apocalyptic number.

It is an amenable number.

7938168 is an abundant number, since it is smaller than the sum of its proper divisors (14742792).

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

7938168 is a wasteful number, since it uses less digits than its factorization.

7938168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47267 (or 47263 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 7938168 is about 2817.4754657317. The cubic root of 7938168 is about 199.4834001050.

The spelling of 7938168 in words is "seven million, nine hundred thirty-eight thousand, one hundred sixty-eight".