5906491 has 4 divisors (see below), whose sum is σ = 5919712. Its totient is φ = 5893272.

The previous prime is 5906489. The next prime is 5906539. The reversal of 5906491 is 1946095.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1946095 = 5 ⋅389219.

It is a cyclic number.

It is not a de Polignac number, because 5906491 - 2¹ = 5906489 is a prime.

It is a Duffinian number.

5906491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5906441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5916 + ... + 6841.

It is an arithmetic number, because the mean of its divisors is an integer number (1479928).

Almost surely, 2^5906491 is an apocalyptic number.

5906491 is a deficient number, since it is larger than the sum of its proper divisors (13221).

5906491 is a wasteful number, since it uses less digits than its factorization.

5906491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13220.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 5906491 is about 2430.3273442069. The cubic root of 5906491 is about 180.7631283799.

The spelling of 5906491 in words is "five million, nine hundred six thousand, four hundred ninety-one".