6542766 has 24 divisors (see below), whose sum is σ = 14317680. Its totient is φ = 2159136.

The previous prime is 6542749. The next prime is 6542779. The reversal of 6542766 is 6672456.

It is a self number, because there is not a number n which added to its sum of digits gives 6542766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90 + ... + 3618.

It is an arithmetic number, because the mean of its divisors is an integer number (596570).

Almost surely, 2^6542766 is an apocalyptic number.

6542766 is an abundant number, since it is smaller than the sum of its proper divisors (7774914).

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

6542766 is a wasteful number, since it uses less digits than its factorization.

6542766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640 (or 3637 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 6542766 is about 2557.8831091354. The cubic root of 6542766 is about 187.0339572486.

The spelling of 6542766 in words is "six million, five hundred forty-two thousand, seven hundred sixty-six".