83520587 has 2 divisors, whose sum is σ = 83520588. Its totient is φ = 83520586.

The previous prime is 83520571. The next prime is 83520601. The reversal of 83520587 is 78502538.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83520587 - 2⁴ = 83520571 is a prime.

It is a Chen prime.

It is equal to p_4862738 and since 83520587 and 4862738 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83520587.

It is not a weakly prime, because it can be changed into another prime (83520517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41760293 + 41760294.

It is an arithmetic number, because the mean of its divisors is an integer number (41760294).

Almost surely, 2^83520587 is an apocalyptic number.

83520587 is a deficient number, since it is larger than the sum of its proper divisors (1).

83520587 is an equidigital number, since it uses as much as digits as its factorization.

83520587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 83520587 is about 9138.9598423453. The cubic root of 83520587 is about 437.1171499145.

The spelling of 83520587 in words is "eighty-three million, five hundred twenty thousand, five hundred eighty-seven".