83138406 has 32 divisors (see below), whose sum is σ = 183441888. Its totient is φ = 24956160.

The previous prime is 83138401. The next prime is 83138411. The reversal of 83138406 is 60483138.

It is an interprime number because it is at equal distance from previous prime (83138401) and next prime (83138411).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83138401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9801 + ... + 16196.

It is an arithmetic number, because the mean of its divisors is an integer number (5732559).

Almost surely, 2^83138406 is an apocalyptic number.

83138406 is an abundant number, since it is smaller than the sum of its proper divisors (100303482).

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

83138406 is a wasteful number, since it uses less digits than its factorization.

83138406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26056.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 83138406 is about 9118.0264311966. The cubic root of 83138406 is about 436.4493970565.

The spelling of 83138406 in words is "eighty-three million, one hundred thirty-eight thousand, four hundred six".