83021910 has 16 divisors (see below), whose sum is σ = 199252656. Its totient is φ = 22139168.

The previous prime is 83021893. The next prime is 83021923. The reversal of 83021910 is 1912038.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383669 + ... + 1383728.

It is an arithmetic number, because the mean of its divisors is an integer number (12453291).

Almost surely, 2^83021910 is an apocalyptic number.

83021910 is an abundant number, since it is smaller than the sum of its proper divisors (116230746).

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

83021910 is a wasteful number, since it uses less digits than its factorization.

83021910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767407.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 83021910 is about 9111.6359672673. The cubic root of 83021910 is about 436.2454464868.

Adding to 83021910 its reverse (1912038), we get a palindrome (84933948).

The spelling of 83021910 in words is "eighty-three million, twenty-one thousand, nine hundred ten".