82606638 has 16 divisors (see below), whose sum is σ = 174931920. Its totient is φ = 25915776.

The previous prime is 82606637. The next prime is 82606651. The reversal of 82606638 is 83660628.

It is a junction number, because it is equal to n+sod(n) for n = 82606596 and 82606605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82606633) 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, 404833 + ... + 405036.

It is an arithmetic number, because the mean of its divisors is an integer number (10933245).

Almost surely, 2^82606638 is an apocalyptic number.

82606638 is an abundant number, since it is smaller than the sum of its proper divisors (92325282).

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

82606638 is a wasteful number, since it uses less digits than its factorization.

82606638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809891.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 82606638 is about 9088.8193952790. The cubic root of 82606638 is about 435.5168700842.

The spelling of 82606638 in words is "eighty-two million, six hundred six thousand, six hundred thirty-eight".