82370891 has 2 divisors, whose sum is σ = 82370892. Its totient is φ = 82370890.

The previous prime is 82370867. The next prime is 82370963. The reversal of 82370891 is 19807328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82370891 - 2²² = 78176587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82370591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41185445 + 41185446.

It is an arithmetic number, because the mean of its divisors is an integer number (41185446).

Almost surely, 2^82370891 is an apocalyptic number.

82370891 is a deficient number, since it is larger than the sum of its proper divisors (1).

82370891 is an equidigital number, since it uses as much as digits as its factorization.

82370891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 82370891 is about 9075.8410629539. The cubic root of 82370891 is about 435.1021753204.

The spelling of 82370891 in words is "eighty-two million, three hundred seventy thousand, eight hundred ninety-one".