82249790 has 32 divisors (see below), whose sum is σ = 169551360. Its totient is φ = 28141344.

The previous prime is 82249787. The next prime is 82249793. The reversal of 82249790 is 9794228.

It is an interprime number because it is at equal distance from previous prime (82249787) and next prime (82249793).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82249793) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 45239 + ... + 47021.

It is an arithmetic number, because the mean of its divisors is an integer number (5298480).

Almost surely, 2^82249790 is an apocalyptic number.

82249790 is an abundant number, since it is smaller than the sum of its proper divisors (87301570).

82249790 is a wasteful number, since it uses less digits than its factorization.

82249790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 82249790 is about 9069.1669959264. The cubic root of 82249790 is about 434.8888428712. Note that the first 4 decimals are identical.

The spelling of 82249790 in words is "eighty-two million, two hundred forty-nine thousand, seven hundred ninety".