6694407 has 16 divisors (see below), whose sum is σ = 10043360. Its totient is φ = 4461480.

The previous prime is 6694399. The next prime is 6694409. The reversal of 6694407 is 7044966.

It is not a de Polignac number, because 6694407 - 2³ = 6694399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694409) 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, 657 + ... + 3717.

It is an arithmetic number, because the mean of its divisors is an integer number (627710).

Almost surely, 2^6694407 is an apocalyptic number.

6694407 is a deficient number, since it is larger than the sum of its proper divisors (3348953).

6694407 is an frugal number, since it uses more digits than its factorization.

6694407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082 (or 3064 counting only the distinct ones).

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

The square root of 6694407 is about 2587.3552133404. The cubic root of 6694407 is about 188.4678910662.

The spelling of 6694407 in words is "six million, six hundred ninety-four thousand, four hundred seven".