82887361 has 2 divisors, whose sum is σ = 82887362. Its totient is φ = 82887360.

The previous prime is 82887347. The next prime is 82887401. The reversal of 82887361 is 16378828.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55219761 + 27667600 = 7431^2 + 5260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82887361 is a prime.

It is a super-2 number, since 2×82887361² = 13740629227088642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82837361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41443680 + 41443681.

It is an arithmetic number, because the mean of its divisors is an integer number (41443681).

Almost surely, 2^82887361 is an apocalyptic number.

It is an amenable number.

82887361 is a deficient number, since it is larger than the sum of its proper divisors (1).

82887361 is an equidigital number, since it uses as much as digits as its factorization.

82887361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 82887361 is about 9104.2496121317. The cubic root of 82887361 is about 436.0096528037.

The spelling of 82887361 in words is "eighty-two million, eight hundred eighty-seven thousand, three hundred sixty-one".