83249389 has 4 divisors (see below), whose sum is σ = 83905024. Its totient is φ = 82593756.

The previous prime is 83249381. The next prime is 83249399. The reversal of 83249389 is 98394238.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98394238 = 2 ⋅49197119.

It is a cyclic number.

It is not a de Polignac number, because 83249389 - 2³ = 83249381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83249381) 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, 327627 + ... + 327880.

It is an arithmetic number, because the mean of its divisors is an integer number (20976256).

Almost surely, 2^83249389 is an apocalyptic number.

It is an amenable number.

83249389 is a deficient number, since it is larger than the sum of its proper divisors (655635).

83249389 is a wasteful number, since it uses less digits than its factorization.

83249389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655634.

The product of its digits is 373248, while the sum is 46.

The square root of 83249389 is about 9124.1103127921. The cubic root of 83249389 is about 436.6435188346.

It can be divided in two parts, 83249 and 389, that added together give a palindrome (83638).

The spelling of 83249389 in words is "eighty-three million, two hundred forty-nine thousand, three hundred eighty-nine".