6407405 has 8 divisors (see below), whose sum is σ = 7954200. Its totient is φ = 4949056.

The previous prime is 6407393. The next prime is 6407417. The reversal of 6407405 is 5047046.

6407405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6407393) and next prime (6407417).

It can be written as a sum of positive squares in 4 ways, for example, as 1444 + 6405961 = 38^2 + 2531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6407405 - 2¹⁰ = 6406381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21950 + ... + 22239.

It is an arithmetic number, because the mean of its divisors is an integer number (994275).

Almost surely, 2^6407405 is an apocalyptic number.

It is an amenable number.

6407405 is a deficient number, since it is larger than the sum of its proper divisors (1546795).

6407405 is a wasteful number, since it uses less digits than its factorization.

6407405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44223.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 6407405 is about 2531.2852466682. The cubic root of 6407405 is about 185.7351319231.

The spelling of 6407405 in words is "six million, four hundred seven thousand, four hundred five".