5664019 has 4 divisors (see below), whose sum is σ = 5859360. Its totient is φ = 5468680.

The previous prime is 5664013. The next prime is 5664031. The reversal of 5664019 is 9104665.

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 5664019 - 2³ = 5664011 is a prime.

It is a super-2 number, since 2×5664019² = 64162222464722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5664011) 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, 97627 + ... + 97684.

It is an arithmetic number, because the mean of its divisors is an integer number (1464840).

Almost surely, 2^5664019 is an apocalyptic number.

5664019 is a deficient number, since it is larger than the sum of its proper divisors (195341).

5664019 is a wasteful number, since it uses less digits than its factorization.

5664019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195340.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 5664019 is about 2379.9199566372. The cubic root of 5664019 is about 178.2549370578.

The spelling of 5664019 in words is "five million, six hundred sixty-four thousand, nineteen".