7666463 has 4 divisors (see below), whose sum is σ = 8761680. Its totient is φ = 6571248.

The previous prime is 7666459. The next prime is 7666487. The reversal of 7666463 is 3646667.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7666463 - 2² = 7666459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666423) 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, 547598 + ... + 547611.

It is an arithmetic number, because the mean of its divisors is an integer number (2190420).

Almost surely, 2^7666463 is an apocalyptic number.

7666463 is a deficient number, since it is larger than the sum of its proper divisors (1095217).

7666463 is a wasteful number, since it uses less digits than its factorization.

7666463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095216.

The product of its digits is 108864, while the sum is 38.

The square root of 7666463 is about 2768.8378428503. The cubic root of 7666463 is about 197.1809772406.

The spelling of 7666463 in words is "seven million, six hundred sixty-six thousand, four hundred sixty-three".