5906405 has 4 divisors (see below), whose sum is σ = 7087692. Its totient is φ = 4725120.

The previous prime is 5906371. The next prime is 5906441. The reversal of 5906405 is 5046095.

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 1555009 + 4351396 = 1247^2 + 2086^2 .

It is not a de Polignac number, because 5906405 - 2¹⁰ = 5905381 is a prime.

It is a Duffinian number.

It is a Curzon 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, 590636 + ... + 590645.

It is an arithmetic number, because the mean of its divisors is an integer number (1771923).

Almost surely, 2^5906405 is an apocalyptic number.

It is an amenable number.

5906405 is a deficient number, since it is larger than the sum of its proper divisors (1181287).

5906405 is a wasteful number, since it uses less digits than its factorization.

5906405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181286.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 5906405 is about 2430.3096510527. The cubic root of 5906405 is about 180.7622510567.

The spelling of 5906405 in words is "five million, nine hundred six thousand, four hundred five".