85783900 has 18 divisors (see below), whose sum is σ = 186151280. Its totient is φ = 34313520.

The previous prime is 85783891. The next prime is 85783937. The reversal of 85783900 is 938758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 428820 + ... + 429019.

Almost surely, 2^85783900 is an apocalyptic number.

It is an amenable number.

85783900 is an abundant number, since it is smaller than the sum of its proper divisors (100367380).

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

85783900 is a wasteful number, since it uses less digits than its factorization.

85783900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857853 (or 857846 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 85783900 is about 9261.9598358015. The cubic root of 85783900 is about 441.0304704515.

The spelling of 85783900 in words is "eighty-five million, seven hundred eighty-three thousand, nine hundred".