85398835 has 4 divisors (see below), whose sum is σ = 102478608. Its totient is φ = 68319064.

The previous prime is 85398827. The next prime is 85398851. The reversal of 85398835 is 53889358.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85398835 - 2³ = 85398827 is a prime.

It is a super-2 number, since 2×85398835² = 14585922038714450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8539879 + ... + 8539888.

It is an arithmetic number, because the mean of its divisors is an integer number (25619652).

Almost surely, 2^85398835 is an apocalyptic number.

85398835 is a deficient number, since it is larger than the sum of its proper divisors (17079773).

85398835 is a wasteful number, since it uses less digits than its factorization.

85398835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17079772.

The product of its digits is 1036800, while the sum is 49.

The square root of 85398835 is about 9241.1490086461. The cubic root of 85398835 is about 440.3695844477.

The spelling of 85398835 in words is "eighty-five million, three hundred ninety-eight thousand, eight hundred thirty-five".