6687774 has 24 divisors (see below), whose sum is σ = 14697072. Its totient is φ = 2197440.

The previous prime is 6687773. The next prime is 6687781. The reversal of 6687774 is 4777866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6687773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1339 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (612378).

Almost surely, 2^6687774 is an apocalyptic number.

6687774 is an abundant number, since it is smaller than the sum of its proper divisors (8009298).

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

6687774 is a wasteful number, since it uses less digits than its factorization.

6687774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312 (or 5309 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 6687774 is about 2586.0730848141. The cubic root of 6687774 is about 188.4056241306.

The spelling of 6687774 in words is "six million, six hundred eighty-seven thousand, seven hundred seventy-four".