82011637 has 2 divisors, whose sum is σ = 82011638. Its totient is φ = 82011636.

The previous prime is 82011599. The next prime is 82011641. The reversal of 82011637 is 73611028.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 35212356 = 6841^2 + 5934^2 .

It is a cyclic number.

It is not a de Polignac number, because 82011637 - 2⁷ = 82011509 is a prime.

It is a Chen prime.

It is equal to p_4780072 and since 82011637 and 4780072 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82011437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41005818 + 41005819.

It is an arithmetic number, because the mean of its divisors is an integer number (41005819).

Almost surely, 2^82011637 is an apocalyptic number.

82011637 is the 5229-th hex number.

It is an amenable number.

82011637 is a deficient number, since it is larger than the sum of its proper divisors (1).

82011637 is an equidigital number, since it uses as much as digits as its factorization.

82011637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 82011637 is about 9056.0276611768. The cubic root of 82011637 is about 434.4686991214.

The spelling of 82011637 in words is "eighty-two million, eleven thousand, six hundred thirty-seven".