82423031 has 2 divisors, whose sum is σ = 82423032. Its totient is φ = 82423030.

The previous prime is 82422979. The next prime is 82423043. The reversal of 82423031 is 13032428.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82423031 is a prime.

It is a super-2 number, since 2×82423031² = 13587112078453922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82422988 and 82423006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82420031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41211515 + 41211516.

It is an arithmetic number, because the mean of its divisors is an integer number (41211516).

Almost surely, 2^82423031 is an apocalyptic number.

82423031 is a deficient number, since it is larger than the sum of its proper divisors (1).

82423031 is an equidigital number, since it uses as much as digits as its factorization.

82423031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 82423031 is about 9078.7130695931. The cubic root of 82423031 is about 435.1939611528.

Adding to 82423031 its reverse (13032428), we get a palindrome (95455459).

The spelling of 82423031 in words is "eighty-two million, four hundred twenty-three thousand, thirty-one".