6720670 has 32 divisors (see below), whose sum is σ = 13343616. Its totient is φ = 2416800.

The previous prime is 6720667. The next prime is 6720673. The reversal of 6720670 is 760276.

It is an interprime number because it is at equal distance from previous prime (6720667) and next prime (6720673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720673) 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, 11485 + ... + 12055.

It is an arithmetic number, because the mean of its divisors is an integer number (416988).

Almost surely, 2^6720670 is an apocalyptic number.

6720670 is a deficient number, since it is larger than the sum of its proper divisors (6622946).

6720670 is a wasteful number, since it uses less digits than its factorization.

6720670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 6720670 is about 2592.4255051978. The cubic root of 6720670 is about 188.7140305419.

It can be divided in two parts, 67206 and 70, that added together give a palindrome (67276).

The spelling of 6720670 in words is "six million, seven hundred twenty thousand, six hundred seventy".