82730493 has 6 divisors (see below), whose sum is σ = 119499614. Its totient is φ = 55153656.

The previous prime is 82730489. The next prime is 82730507. The reversal of 82730493 is 39403728.

It can be written as a sum of positive squares in only one way, i.e., 48191364 + 34539129 = 6942^2 + 5877^2 .

It is not a de Polignac number, because 82730493 - 2² = 82730489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82730393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4596130 + ... + 4596147.

Almost surely, 2^82730493 is an apocalyptic number.

It is an amenable number.

82730493 is a deficient number, since it is larger than the sum of its proper divisors (36769121).

82730493 is a wasteful number, since it uses less digits than its factorization.

82730493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9192283 (or 9192280 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 82730493 is about 9095.6304344449. The cubic root of 82730493 is about 435.7344232461.

The spelling of 82730493 in words is "eighty-two million, seven hundred thirty thousand, four hundred ninety-three".