82938609 has 36 divisors (see below), whose sum is σ = 133985280. Its totient is φ = 49364640.

The previous prime is 82938607. The next prime is 82938617. The reversal of 82938609 is 90683928.

82938609 is a `hidden beast` number, since 8 + 2 + 9 + 38 + 609 = 666.

It is not a de Polignac number, because 82938609 - 2¹ = 82938607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82938607) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46272 + ... + 48030.

Almost surely, 2^82938609 is an apocalyptic number.

It is an amenable number.

82938609 is a deficient number, since it is larger than the sum of its proper divisors (51046671).

82938609 is a wasteful number, since it uses less digits than its factorization.

82938609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1806 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 82938609 is about 9107.0636870508. The cubic root of 82938609 is about 436.0994936789.

The spelling of 82938609 in words is "eighty-two million, nine hundred thirty-eight thousand, six hundred nine".