6551670 has 16 divisors (see below), whose sum is σ = 15724080. Its totient is φ = 1747104.

The previous prime is 6551653. The next prime is 6551689. The reversal of 6551670 is 761556.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 218389 = 6551670 / (6 + 5 + 5 + 1 + 6 + 7 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109165 + ... + 109224.

It is an arithmetic number, because the mean of its divisors is an integer number (982755).

Almost surely, 2^6551670 is an apocalyptic number.

6551670 is an abundant number, since it is smaller than the sum of its proper divisors (9172410).

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

6551670 is a wasteful number, since it uses less digits than its factorization.

6551670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218399.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 6551670 is about 2559.6230191182. The cubic root of 6551670 is about 187.1187631483.

The spelling of 6551670 in words is "six million, five hundred fifty-one thousand, six hundred seventy".