6407605 has 4 divisors (see below), whose sum is σ = 7689132. Its totient is φ = 5126080.

The previous prime is 6407591. The next prime is 6407671. The reversal of 6407605 is 5067046.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 842724 + 5564881 = 918^2 + 2359^2 .

It is not a de Polignac number, because 6407605 - 2⁵ = 6407573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640756 + ... + 640765.

It is an arithmetic number, because the mean of its divisors is an integer number (1922283).

Almost surely, 2^6407605 is an apocalyptic number.

It is an amenable number.

6407605 is a deficient number, since it is larger than the sum of its proper divisors (1281527).

6407605 is a wasteful number, since it uses less digits than its factorization.

6407605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281526.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 6407605 is about 2531.3247519826. The cubic root of 6407605 is about 185.7370644080.

The spelling of 6407605 in words is "six million, four hundred seven thousand, six hundred five".