6424491 has 4 divisors (see below), whose sum is σ = 8565992. Its totient is φ = 4282992.

The previous prime is 6424469. The next prime is 6424507. The reversal of 6424491 is 1944246.

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

It is not a de Polignac number, because 6424491 - 2⁶ = 6424427 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6424091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070746 + ... + 1070751.

It is an arithmetic number, because the mean of its divisors is an integer number (2141498).

Almost surely, 2^6424491 is an apocalyptic number.

6424491 is a deficient number, since it is larger than the sum of its proper divisors (2141501).

6424491 is a wasteful number, since it uses less digits than its factorization.

6424491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141500.

The product of its digits is 6912, while the sum is 30.

The square root of 6424491 is about 2534.6579650911. The cubic root of 6424491 is about 185.9000792947.

The spelling of 6424491 in words is "six million, four hundred twenty-four thousand, four hundred ninety-one".