82312858 has 4 divisors (see below), whose sum is σ = 123469290. Its totient is φ = 41156428.

The previous prime is 82312849. The next prime is 82312859. The reversal of 82312858 is 85821328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51365889 + 30946969 = 7167^2 + 5563^2 .

It is not an unprimeable number, because it can be changed into a prime (82312859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20578213 + ... + 20578216.

Almost surely, 2^82312858 is an apocalyptic number.

82312858 is a deficient number, since it is larger than the sum of its proper divisors (41156432).

82312858 is a wasteful number, since it uses less digits than its factorization.

82312858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41156431.

The product of its digits is 30720, while the sum is 37.

The square root of 82312858 is about 9072.6433854748. The cubic root of 82312858 is about 434.9999700533. Note that the first 4 decimals are identical.

The spelling of 82312858 in words is "eighty-two million, three hundred twelve thousand, eight hundred fifty-eight".