82019837 has 2 divisors, whose sum is σ = 82019838. Its totient is φ = 82019836.

The previous prime is 82019797. The next prime is 82019851. The reversal of 82019837 is 73891028.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79905721 + 2114116 = 8939^2 + 1454^2 .

It is a cyclic number.

It is not a de Polignac number, because 82019837 - 2¹⁰ = 82018813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82019837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82019857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41009918 + 41009919.

It is an arithmetic number, because the mean of its divisors is an integer number (41009919).

Almost surely, 2^82019837 is an apocalyptic number.

It is an amenable number.

82019837 is a deficient number, since it is larger than the sum of its proper divisors (1).

82019837 is an equidigital number, since it uses as much as digits as its factorization.

82019837 is an evil number, because the sum of its binary digits is even.

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

The square root of 82019837 is about 9056.4803869936. The cubic root of 82019837 is about 434.4831788739.

It can be divided in two parts, 82019 and 837, that multiplied together give a triangular number (68649903 = T₁₁₇₁₇).

The spelling of 82019837 in words is "eighty-two million, nineteen thousand, eight hundred thirty-seven".