83283878 has 16 divisors (see below), whose sum is σ = 132736320. Its totient is φ = 39079656.

The previous prime is 83283877. The next prime is 83283883. The reversal of 83283878 is 87838238.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83283877) 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, 6176 + ... + 14307.

It is an arithmetic number, because the mean of its divisors is an integer number (8296020).

Almost surely, 2^83283878 is an apocalyptic number.

83283878 is a deficient number, since it is larger than the sum of its proper divisors (49452442).

83283878 is a wasteful number, since it uses less digits than its factorization.

83283878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20611.

The product of its digits is 516096, while the sum is 47.

The square root of 83283878 is about 9126.0001095770. Note that the first 3 decimals coincide. The cubic root of 83283878 is about 436.7038088433.

The spelling of 83283878 in words is "eighty-three million, two hundred eighty-three thousand, eight hundred seventy-eight".