83884369 has 4 divisors (see below), whose sum is σ = 84826980. Its totient is φ = 82941760.

The previous prime is 83884363. The next prime is 83884379. The reversal of 83884369 is 96348838.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96348838 = 2 ⋅48174419.

It can be written as a sum of positive squares in 2 ways, for example, as 50936769 + 32947600 = 7137^2 + 5740^2 .

It is a cyclic number.

It is not a de Polignac number, because 83884369 - 2¹⁷ = 83753297 is a prime.

It is a super-2 number, since 2×83884369² = 14073174725056322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83884363) 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, 471172 + ... + 471349.

It is an arithmetic number, because the mean of its divisors is an integer number (21206745).

Almost surely, 2^83884369 is an apocalyptic number.

83884369 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

83884369 is a deficient number, since it is larger than the sum of its proper divisors (942611).

83884369 is an equidigital number, since it uses as much as digits as its factorization.

83884369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942610.

The product of its digits is 995328, while the sum is 49.

The square root of 83884369 is about 9158.8410293006. The cubic root of 83884369 is about 437.7508660830.

The spelling of 83884369 in words is "eighty-three million, eight hundred eighty-four thousand, three hundred sixty-nine".