5756405 has 8 divisors (see below), whose sum is σ = 6952632. Its totient is φ = 4575168.

The previous prime is 5756389. The next prime is 5756447. The reversal of 5756405 is 5046575.

It is a happy number.

5756405 is nontrivially palindromic in base 2.

It can be written as a sum of positive squares in 4 ways, for example, as 106276 + 5650129 = 326^2 + 2377^2 .

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 5756405 - 2⁴ = 5756389 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4 and base 7.

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, 2882 + ... + 4451.

It is an arithmetic number, because the mean of its divisors is an integer number (869079).

Almost surely, 2^5756405 is an apocalyptic number.

It is an amenable number.

5756405 is a deficient number, since it is larger than the sum of its proper divisors (1196227).

5756405 is a wasteful number, since it uses less digits than its factorization.

5756405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7495.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 5756405 is about 2399.2509247680. The cubic root of 5756405 is about 179.2188889295.

The spelling of 5756405 in words is "five million, seven hundred fifty-six thousand, four hundred five".