83540087 has 2 divisors, whose sum is σ = 83540088. Its totient is φ = 83540086.

The previous prime is 83540077. The next prime is 83540101. The reversal of 83540087 is 78004538.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83540087 is a prime.

It is a super-2 number, since 2×83540087² = 13957892271935138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83540027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41770043 + 41770044.

It is an arithmetic number, because the mean of its divisors is an integer number (41770044).

Almost surely, 2^83540087 is an apocalyptic number.

83540087 is a deficient number, since it is larger than the sum of its proper divisors (1).

83540087 is an equidigital number, since it uses as much as digits as its factorization.

83540087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 83540087 is about 9140.0266410990. The cubic root of 83540087 is about 437.1511659636.

The spelling of 83540087 in words is "eighty-three million, five hundred forty thousand, eighty-seven".