7943668 has 12 divisors (see below), whose sum is σ = 14240772. Its totient is φ = 3874880.

The previous prime is 7943629. The next prime is 7943713. The reversal of 7943668 is 8663497.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1532644 + 6411024 = 1238^2 + 2532^2 .

It is a super-2 number, since 2×7943668² = 126203722588448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24055 + ... + 24382.

It is an arithmetic number, because the mean of its divisors is an integer number (1186731).

Almost surely, 2^7943668 is an apocalyptic number.

It is an amenable number.

7943668 is a deficient number, since it is larger than the sum of its proper divisors (6297104).

7943668 is a wasteful number, since it uses less digits than its factorization.

7943668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48482 (or 48480 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 7943668 is about 2818.4513478150. The cubic root of 7943668 is about 199.5294604977.

The spelling of 7943668 in words is "seven million, nine hundred forty-three thousand, six hundred sixty-eight".