85017487 has 2 divisors, whose sum is σ = 85017488. Its totient is φ = 85017486.

The previous prime is 85017467. The next prime is 85017497. The reversal of 85017487 is 78471058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85017487 - 2¹⁵ = 84984719 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85017437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42508743 + 42508744.

It is an arithmetic number, because the mean of its divisors is an integer number (42508744).

Almost surely, 2^85017487 is an apocalyptic number.

85017487 is a deficient number, since it is larger than the sum of its proper divisors (1).

85017487 is an equidigital number, since it uses as much as digits as its factorization.

85017487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 85017487 is about 9220.4927742502. The cubic root of 85017487 is about 439.7131170544.

The spelling of 85017487 in words is "eighty-five million, seventeen thousand, four hundred eighty-seven".