85503966 has 16 divisors (see below), whose sum is σ = 175630224. Its totient is φ = 27730944.

The previous prime is 85503961. The next prime is 85503967. The reversal of 85503966 is 66930558.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85503961) 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, 192355 + ... + 192798.

It is an arithmetic number, because the mean of its divisors is an integer number (10976889).

Almost surely, 2^85503966 is an apocalyptic number.

85503966 is an abundant number, since it is smaller than the sum of its proper divisors (90126258).

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

85503966 is a wasteful number, since it uses less digits than its factorization.

85503966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385195.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 85503966 is about 9246.8354586853. The cubic root of 85503966 is about 440.5502173172.

The spelling of 85503966 in words is "eighty-five million, five hundred three thousand, nine hundred sixty-six".