83838019 has 4 divisors (see below), whose sum is σ = 83987496. Its totient is φ = 83688544.

The previous prime is 83838011. The next prime is 83838023. The reversal of 83838019 is 91083838.

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 83838019 - 2³ = 83838011 is a prime.

It is a super-2 number, since 2×83838019² = 14057626859688722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) 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 (83838011) 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, 73894 + ... + 75019.

It is an arithmetic number, because the mean of its divisors is an integer number (20996874).

Almost surely, 2^83838019 is an apocalyptic number.

83838019 is a deficient number, since it is larger than the sum of its proper divisors (149477).

83838019 is a wasteful number, since it uses less digits than its factorization.

83838019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149476.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 83838019 is about 9156.3103376852. The cubic root of 83838019 is about 437.6702253509.

The spelling of 83838019 in words is "eighty-three million, eight hundred thirty-eight thousand, nineteen".