82891936 has 12 divisors (see below), whose sum is σ = 163193562. Its totient is φ = 41445952.

The previous prime is 82891933. The next prime is 82891943. The reversal of 82891936 is 63919828.

It can be written as a sum of positive squares in only one way, i.e., 72931600 + 9960336 = 8540^2 + 3156^2 .

It is not an unprimeable number, because it can be changed into a prime (82891933) by changing a digit.

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 as a sum of consecutive naturals, namely, 1295155 + ... + 1295218.

Almost surely, 2^82891936 is an apocalyptic number.

It is an amenable number.

82891936 is a deficient number, since it is larger than the sum of its proper divisors (80301626).

82891936 is a wasteful number, since it uses less digits than its factorization.

82891936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590383 (or 2590375 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 82891936 is about 9104.5008649568. The cubic root of 82891936 is about 436.0176745634.

The spelling of 82891936 in words is "eighty-two million, eight hundred ninety-one thousand, nine hundred thirty-six".