82230691 has 2 divisors, whose sum is σ = 82230692. Its totient is φ = 82230690.

The previous prime is 82230667. The next prime is 82230697. The reversal of 82230691 is 19603228.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82230691 - 2²⁵ = 48676259 is a prime.

It is not a weakly prime, because it can be changed into another prime (82230697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41115345 + 41115346.

It is an arithmetic number, because the mean of its divisors is an integer number (41115346).

Almost surely, 2^82230691 is an apocalyptic number.

82230691 is a deficient number, since it is larger than the sum of its proper divisors (1).

82230691 is an equidigital number, since it uses as much as digits as its factorization.

82230691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 82230691 is about 9068.1139714937. The cubic root of 82230691 is about 434.8551788137.

It can be divided in two parts, 822 and 30691, that added together give a palindrome (31513).

The spelling of 82230691 in words is "eighty-two million, two hundred thirty thousand, six hundred ninety-one".