83030911 has 4 divisors (see below), whose sum is σ = 83060152. Its totient is φ = 83001672.

The previous prime is 83030903. The next prime is 83030921. The reversal of 83030911 is 11903038.

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 83030911 - 2³ = 83030903 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 (83030921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9840 + ... + 16213.

It is an arithmetic number, because the mean of its divisors is an integer number (20765038).

Almost surely, 2^83030911 is an apocalyptic number.

83030911 is a deficient number, since it is larger than the sum of its proper divisors (29241).

83030911 is a wasteful number, since it uses less digits than its factorization.

83030911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29240.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 83030911 is about 9112.1298827442. The cubic root of 83030911 is about 436.2612114151.

Adding to 83030911 its reverse (11903038), we get a palindrome (94933949).

The spelling of 83030911 in words is "eighty-three million, thirty thousand, nine hundred eleven".