85237899 has 8 divisors (see below), whose sum is σ = 116722320. Its totient is φ = 55289376.

The previous prime is 85237897. The next prime is 85237903. The reversal of 85237899 is 99873258.

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

It is not a de Polignac number, because 85237899 - 2¹ = 85237897 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (85237897) 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, 383844 + ... + 384065.

It is an arithmetic number, because the mean of its divisors is an integer number (14590290).

Almost surely, 2^85237899 is an apocalyptic number.

85237899 is a deficient number, since it is larger than the sum of its proper divisors (31484421).

85237899 is a wasteful number, since it uses less digits than its factorization.

85237899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767949.

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

The square root of 85237899 is about 9232.4373271634. The cubic root of 85237899 is about 440.0927817425.

The spelling of 85237899 in words is "eighty-five million, two hundred thirty-seven thousand, eight hundred ninety-nine".