6697920 has 56 divisors (see below), whose sum is σ = 21268944. Its totient is φ = 1785856.

The previous prime is 6697897. The next prime is 6697921. The reversal of 6697920 is 297966.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6697921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2529 + ... + 4448.

Almost surely, 2^6697920 is an apocalyptic number.

6697920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6697920 is an abundant number, since it is smaller than the sum of its proper divisors (14571024).

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

6697920 is a wasteful number, since it uses less digits than its factorization.

6697920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6997 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 6697920 is about 2588.0340028678. The cubic root of 6697920 is about 188.5008525081.

The spelling of 6697920 in words is "six million, six hundred ninety-seven thousand, nine hundred twenty".