83538906 has 16 divisors (see below), whose sum is σ = 182266848. Its totient is φ = 25314800.

The previous prime is 83538887. The next prime is 83538907. The reversal of 83538906 is 60983538.

It is not an unprimeable number, because it can be changed into a prime (83538907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632805 + ... + 632936.

It is an arithmetic number, because the mean of its divisors is an integer number (11391678).

Almost surely, 2^83538906 is an apocalyptic number.

83538906 is an abundant number, since it is smaller than the sum of its proper divisors (98727942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83538906 is a wasteful number, since it uses less digits than its factorization.

83538906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265757.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 83538906 is about 9139.9620349321. The cubic root of 83538906 is about 437.1491059627.

The spelling of 83538906 in words is "eighty-three million, five hundred thirty-eight thousand, nine hundred six".