82259664 has 40 divisors (see below), whose sum is σ = 223691040. Its totient is φ = 25976448.

The previous prime is 82259663. The next prime is 82259687. The reversal of 82259664 is 46695228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82259663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44187 + ... + 46010.

It is an arithmetic number, because the mean of its divisors is an integer number (5592276).

Almost surely, 2^82259664 is an apocalyptic number.

It is an amenable number.

82259664 is an abundant number, since it is smaller than the sum of its proper divisors (141431376).

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

82259664 is a wasteful number, since it uses less digits than its factorization.

82259664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90227 (or 90221 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 82259664 is about 9069.7113515260. The cubic root of 82259664 is about 434.9062448229.

The spelling of 82259664 in words is "eighty-two million, two hundred fifty-nine thousand, six hundred sixty-four".