85903530 has 32 divisors (see below), whose sum is σ = 208217088. Its totient is φ = 22680000.

The previous prime is 85903523. The next prime is 85903537. The reversal of 85903530 is 3530958.

It is an interprime number because it is at equal distance from previous prime (85903523) and next prime (85903537).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85903491 and 85903500.

It is not an unprimeable number, because it can be changed into a prime (85903537) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11146 + ... + 17205.

It is an arithmetic number, because the mean of its divisors is an integer number (6506784).

Almost surely, 2^85903530 is an apocalyptic number.

85903530 is an abundant number, since it is smaller than the sum of its proper divisors (122313558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85903530 is a wasteful number, since it uses less digits than its factorization.

85903530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28462.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 85903530 is about 9268.4157222257. The cubic root of 85903530 is about 441.2353883457.

The spelling of 85903530 in words is "eighty-five million, nine hundred three thousand, five hundred thirty".