82338890 has 32 divisors (see below), whose sum is σ = 151448400. Its totient is φ = 32223744.

The previous prime is 82338863. The next prime is 82338929. The reversal of 82338890 is 9883328.

It can be written as a sum of positive squares in 8 ways, for example, as 25472209 + 56866681 = 5047^2 + 7541^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108392 + ... + 109148.

Almost surely, 2^82338890 is an apocalyptic number.

82338890 is a deficient number, since it is larger than the sum of its proper divisors (69109510).

82338890 is a wasteful number, since it uses less digits than its factorization.

82338890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 82338890 is about 9074.0779145872. The cubic root of 82338890 is about 435.0458224509.

The spelling of 82338890 in words is "eighty-two million, three hundred thirty-eight thousand, eight hundred ninety".