83548909 has 4 divisors (see below), whose sum is σ = 87946240. Its totient is φ = 79151580.

The previous prime is 83548891. The next prime is 83548943. The reversal of 83548909 is 90984538.

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.

It is a cyclic number.

It is not a de Polignac number, because 83548909 - 2⁵ = 83548877 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 (83548009) 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, 2198637 + ... + 2198674.

It is an arithmetic number, because the mean of its divisors is an integer number (21986560).

Almost surely, 2^83548909 is an apocalyptic number.

It is an amenable number.

83548909 is a deficient number, since it is larger than the sum of its proper divisors (4397331).

83548909 is a wasteful number, since it uses less digits than its factorization.

83548909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4397330.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 83548909 is about 9140.5092308908. The cubic root of 83548909 is about 437.1665534339.

The spelling of 83548909 in words is "eighty-three million, five hundred forty-eight thousand, nine hundred nine".