85019487 has 16 divisors (see below), whose sum is σ = 130217472. Its totient is φ = 48333600.

The previous prime is 85019479. The next prime is 85019507. The reversal of 85019487 is 78491058.

It is not a de Polignac number, because 85019487 - 2³ = 85019479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85019087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6139 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (8138592).

Almost surely, 2^85019487 is an apocalyptic number.

85019487 is a deficient number, since it is larger than the sum of its proper divisors (45197985).

85019487 is a wasteful number, since it uses less digits than its factorization.

85019487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20758.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 85019487 is about 9220.6012276858. The cubic root of 85019487 is about 439.7165650483.

The spelling of 85019487 in words is "eighty-five million, nineteen thousand, four hundred eighty-seven".