82930581 has 8 divisors (see below), whose sum is σ = 122860160. Its totient is φ = 55287036.

The previous prime is 82930511. The next prime is 82930583. The reversal of 82930581 is 18503928.

It is not a de Polignac number, because 82930581 - 2⁷ = 82930453 is a prime.

It is a super-2 number, since 2×82930581² = 13754962529995122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82930583) 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, 1535725 + ... + 1535778.

It is an arithmetic number, because the mean of its divisors is an integer number (15357520).

Almost surely, 2^82930581 is an apocalyptic number.

It is an amenable number.

82930581 is a deficient number, since it is larger than the sum of its proper divisors (39929579).

82930581 is a wasteful number, since it uses less digits than its factorization.

82930581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071512 (or 3071506 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 82930581 is about 9106.6229196119. The cubic root of 82930581 is about 436.0854225495.

The spelling of 82930581 in words is "eighty-two million, nine hundred thirty thousand, five hundred eighty-one".