82373813 has 2 divisors, whose sum is σ = 82373814. Its totient is φ = 82373812.

The previous prime is 82373783. The next prime is 82373839. The reversal of 82373813 is 31837328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63075364 + 19298449 = 7942^2 + 4393^2 .

It is a cyclic number.

It is not a de Polignac number, because 82373813 - 2¹⁶ = 82308277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82373413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41186906 + 41186907.

It is an arithmetic number, because the mean of its divisors is an integer number (41186907).

Almost surely, 2^82373813 is an apocalyptic number.

It is an amenable number.

82373813 is a deficient number, since it is larger than the sum of its proper divisors (1).

82373813 is an equidigital number, since it uses as much as digits as its factorization.

82373813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 82373813 is about 9076.0020383427. The cubic root of 82373813 is about 435.1073201537.

The spelling of 82373813 in words is "eighty-two million, three hundred seventy-three thousand, eight hundred thirteen".