82961237 has 2 divisors, whose sum is σ = 82961238. Its totient is φ = 82961236.

The previous prime is 82961213. The next prime is 82961267. The reversal of 82961237 is 73216928.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81018001 + 1943236 = 9001^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 82961237 - 2¹² = 82957141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82961237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82961267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41480618 + 41480619.

It is an arithmetic number, because the mean of its divisors is an integer number (41480619).

Almost surely, 2^82961237 is an apocalyptic number.

It is an amenable number.

82961237 is a deficient number, since it is larger than the sum of its proper divisors (1).

82961237 is an equidigital number, since it uses as much as digits as its factorization.

82961237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 82961237 is about 9108.3059346950. The cubic root of 82961237 is about 436.1391501676.

The spelling of 82961237 in words is "eighty-two million, nine hundred sixty-one thousand, two hundred thirty-seven".