7678006 has 12 divisors (see below), whose sum is σ = 13397508. Its totient is φ = 3290532.

The previous prime is 7678003. The next prime is 7678031. The reversal of 7678006 is 6008767.

It is a super-2 number, since 2×7678006² = 117903552272072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7678003) 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 5 ways as a sum of consecutive naturals, for example, 39076 + ... + 39271.

It is an arithmetic number, because the mean of its divisors is an integer number (1116459).

Almost surely, 2^7678006 is an apocalyptic number.

7678006 is a deficient number, since it is larger than the sum of its proper divisors (5719502).

7678006 is a wasteful number, since it uses less digits than its factorization.

7678006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78363 (or 78356 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 7678006 is about 2770.9215073690. The cubic root of 7678006 is about 197.2798893751.

The spelling of 7678006 in words is "seven million, six hundred seventy-eight thousand, six".