83411689 has 3 divisors (see below), whose sum is σ = 83420823. Its totient is φ = 83402556.

The previous prime is 83411687. The next prime is 83411693. The reversal of 83411689 is 98611438.

The square root of 83411689 is 9133.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 66667225 + 16744464 = 8165^2 + 4092^2 .

It is not a de Polignac number, because 83411689 - 2¹ = 83411687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83411687) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4567 + ... + 13699.

It is an arithmetic number, because the mean of its divisors is an integer number (27806941).

Almost surely, 2^83411689 is an apocalyptic number.

83411689 is the 9133-rd square number.

83411689 is the 4567-th centered octagonal number.

It is an amenable number.

83411689 is a deficient number, since it is larger than the sum of its proper divisors (9134).

83411689 is an frugal number, since it uses more digits than its factorization.

83411689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18266 (or 9133 counting only the distinct ones).

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

The cubic root of 83411689 is about 436.9270894424.

It can be divided in two parts, 83411 and 689, that added together give a square (84100 = 290²).

The spelling of 83411689 in words is "eighty-three million, four hundred eleven thousand, six hundred eighty-nine".