6697404 has 60 divisors (see below), whose sum is σ = 20016304. Its totient is φ = 1912896.

The previous prime is 6697403. The next prime is 6697423. The reversal of 6697404 is 4047966.

6697404 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6697403) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 792 + ... + 3744.

Almost surely, 2^6697404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6697404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10008152).

6697404 is an abundant number, since it is smaller than the sum of its proper divisors (13318900).

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

6697404 is a wasteful number, since it uses less digits than its factorization.

6697404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976 (or 2965 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 6697404 is about 2587.9343113765. The cubic root of 6697404 is about 188.4960117546.

The spelling of 6697404 in words is "six million, six hundred ninety-seven thousand, four hundred four".