85287399 has 8 divisors (see below), whose sum is σ = 114820992. Its totient is φ = 56306040.

The previous prime is 85287383. The next prime is 85287437. The reversal of 85287399 is 99378258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85287399 - 2⁴ = 85287383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85287359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137697 + ... + 138314.

It is an arithmetic number, because the mean of its divisors is an integer number (14352624).

Almost surely, 2^85287399 is an apocalyptic number.

85287399 is a deficient number, since it is larger than the sum of its proper divisors (29533593).

85287399 is a wasteful number, since it uses less digits than its factorization.

85287399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276117.

The product of its digits is 1088640, while the sum is 51.

The square root of 85287399 is about 9235.1177036354. The cubic root of 85287399 is about 440.1779565976.

The spelling of 85287399 in words is "eighty-five million, two hundred eighty-seven thousand, three hundred ninety-nine".