7663716 has 18 divisors (see below), whose sum is σ = 19372262. Its totient is φ = 2554560.

The previous prime is 7663709. The next prime is 7663729. The reversal of 7663716 is 6173667.

7663716 is a `hidden beast` number, since 7 + 6 + 637 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6350400 + 1313316 = 2520^2 + 1146^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 212881 = 7663716 / (7 + 6 + 6 + 3 + 7 + 1 + 6).

It is an unprimeable number.

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, 106405 + ... + 106476.

Almost surely, 2^7663716 is an apocalyptic number.

It is an amenable number.

7663716 is an abundant number, since it is smaller than the sum of its proper divisors (11708546).

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

7663716 is a wasteful number, since it uses less digits than its factorization.

7663716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212891 (or 212886 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 7663716 is about 2768.3417419098. The cubic root of 7663716 is about 197.1574235344.

The spelling of 7663716 in words is "seven million, six hundred sixty-three thousand, seven hundred sixteen".