82313313 has 4 divisors (see below), whose sum is σ = 109751088. Its totient is φ = 54875540.

The previous prime is 82313279. The next prime is 82313321. The reversal of 82313313 is 31331328.

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 a cyclic number.

It is not a de Polignac number, because 82313313 - 2⁹ = 82312801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82313383) 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, 13718883 + ... + 13718888.

It is an arithmetic number, because the mean of its divisors is an integer number (27437772).

Almost surely, 2^82313313 is an apocalyptic number.

It is an amenable number.

82313313 is a deficient number, since it is larger than the sum of its proper divisors (27437775).

82313313 is a wasteful number, since it uses less digits than its factorization.

82313313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27437774.

The product of its digits is 1296, while the sum is 24.

The square root of 82313313 is about 9072.6684608223. The cubic root of 82313313 is about 435.0007715669. Note that the first 3 decimals are identical.

The spelling of 82313313 in words is "eighty-two million, three hundred thirteen thousand, three hundred thirteen".