6650670 has 32 divisors (see below), whose sum is σ = 17190432. Its totient is φ = 1636992.

The previous prime is 6650659. The next prime is 6650671. The reversal of 6650670 is 760566.

It is a super-2 number, since 2×6650670² = 88462822897800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8137 + ... + 8916.

It is an arithmetic number, because the mean of its divisors is an integer number (537201).

Almost surely, 2^6650670 is an apocalyptic number.

6650670 is an abundant number, since it is smaller than the sum of its proper divisors (10539762).

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

6650670 is a wasteful number, since it uses less digits than its factorization.

6650670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17076.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 6650670 is about 2578.8892958016. The cubic root of 6650670 is about 188.0565508163.

The spelling of 6650670 in words is "six million, six hundred fifty thousand, six hundred seventy".