8445819 has 8 divisors (see below), whose sum is σ = 11429440. Its totient is φ = 5546376.

The previous prime is 8445799. The next prime is 8445841. The reversal of 8445819 is 9185448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8445819 - 2¹⁵ = 8413051 is a prime.

It is a super-2 number, since 2×8445819² = 142663717161522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8445859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20809 + ... + 21210.

It is an arithmetic number, because the mean of its divisors is an integer number (1428680).

Almost surely, 2^8445819 is an apocalyptic number.

8445819 is a deficient number, since it is larger than the sum of its proper divisors (2983621).

8445819 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 8445819 = (4849518)₁₁.

8445819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42089.

The product of its digits is 46080, while the sum is 39.

The square root of 8445819 is about 2906.1691279070. The cubic root of 8445819 is about 203.6482066457.

The spelling of 8445819 in words is "eight million, four hundred forty-five thousand, eight hundred nineteen".