82810313 has 4 divisors (see below), whose sum is σ = 82832400. Its totient is φ = 82788228.

The previous prime is 82810307. The next prime is 82810319. The reversal of 82810313 is 31301828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (82810307) and next prime (82810319).

It is a cyclic number.

It is not a de Polignac number, because 82810313 - 2¹⁰ = 82809289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82810319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3863 + ... + 13436.

It is an arithmetic number, because the mean of its divisors is an integer number (20708100).

Almost surely, 2^82810313 is an apocalyptic number.

It is an amenable number.

82810313 is a deficient number, since it is larger than the sum of its proper divisors (22087).

82810313 is a wasteful number, since it uses less digits than its factorization.

82810313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22086.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 82810313 is about 9100.0171977859. The cubic root of 82810313 is about 435.8745132372.

The spelling of 82810313 in words is "eighty-two million, eight hundred ten thousand, three hundred thirteen".