8426491 has 4 divisors (see below), whose sum is σ = 8654272. Its totient is φ = 8198712.

The previous prime is 8426477. The next prime is 8426497. The reversal of 8426491 is 1946248.

8426491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 8426491 - 2¹¹ = 8424443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8426497) 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, 113835 + ... + 113908.

It is an arithmetic number, because the mean of its divisors is an integer number (2163568).

Almost surely, 2^8426491 is an apocalyptic number.

8426491 is a deficient number, since it is larger than the sum of its proper divisors (227781).

8426491 is a wasteful number, since it uses less digits than its factorization.

8426491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227780.

The product of its digits is 13824, while the sum is 34.

The square root of 8426491 is about 2902.8418833963. The cubic root of 8426491 is about 203.4927404156.

The spelling of 8426491 in words is "eight million, four hundred twenty-six thousand, four hundred ninety-one".