82594809 has 20 divisors (see below), whose sum is σ = 134600400. Its totient is φ = 50056920.

The previous prime is 82594807. The next prime is 82594847. The reversal of 82594809 is 90849528.

It is not a de Polignac number, because 82594809 - 2¹ = 82594807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82594801) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45459 + ... + 47240.

It is an arithmetic number, because the mean of its divisors is an integer number (6730020).

Almost surely, 2^82594809 is an apocalyptic number.

It is an amenable number.

82594809 is a deficient number, since it is larger than the sum of its proper divisors (52005591).

82594809 is a wasteful number, since it uses less digits than its factorization.

82594809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92722 (or 92713 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 82594809 is about 9088.1686273968. The cubic root of 82594809 is about 435.4960808954.

The spelling of 82594809 in words is "eighty-two million, five hundred ninety-four thousand, eight hundred nine".