82361287 has 2 divisors, whose sum is σ = 82361288. Its totient is φ = 82361286.

The previous prime is 82361281. The next prime is 82361303. The reversal of 82361287 is 78216328.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82361287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82361281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41180643 + 41180644.

It is an arithmetic number, because the mean of its divisors is an integer number (41180644).

Almost surely, 2^82361287 is an apocalyptic number.

82361287 is a deficient number, since it is larger than the sum of its proper divisors (1).

82361287 is an equidigital number, since it uses as much as digits as its factorization.

82361287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 82361287 is about 9075.3119505613. The cubic root of 82361287 is about 435.0852644770.

The spelling of 82361287 in words is "eighty-two million, three hundred sixty-one thousand, two hundred eighty-seven".