6647892 has 12 divisors (see below), whose sum is σ = 15511776. Its totient is φ = 2215960.

The previous prime is 6647887. The next prime is 6647899. The reversal of 6647892 is 2987466.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6647899) 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, 276984 + ... + 277007.

It is an arithmetic number, because the mean of its divisors is an integer number (1292648).

Almost surely, 2^6647892 is an apocalyptic number.

It is an amenable number.

6647892 is an abundant number, since it is smaller than the sum of its proper divisors (8863884).

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

6647892 is a wasteful number, since it uses less digits than its factorization.

6647892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553998 (or 553996 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 6647892 is about 2578.3506355808. The cubic root of 6647892 is about 188.0303632866.

The spelling of 6647892 in words is "six million, six hundred forty-seven thousand, eight hundred ninety-two".