7663966 has 8 divisors (see below), whose sum is σ = 11776464. Its totient is φ = 3738480.

The previous prime is 7663951. The next prime is 7663967. The reversal of 7663966 is 6693667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7663967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46650 + ... + 46813.

It is an arithmetic number, because the mean of its divisors is an integer number (1472058).

Almost surely, 2^7663966 is an apocalyptic number.

7663966 is a deficient number, since it is larger than the sum of its proper divisors (4112498).

7663966 is a wasteful number, since it uses less digits than its factorization.

7663966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93506.

The product of its digits is 244944, while the sum is 43.

The square root of 7663966 is about 2768.3868949264. The cubic root of 7663966 is about 197.1595673516.

Subtracting from 7663966 its reverse (6693667), we obtain a cube (970299 = 99³).

The spelling of 7663966 in words is "seven million, six hundred sixty-three thousand, nine hundred sixty-six".