285786196 has 6 divisors (see below), whose sum is σ = 500125850. Its totient is φ = 142893096.

The previous prime is 285786191. The next prime is 285786223. The reversal of 285786196 is 691687582.

It can be written as a sum of positive squares in only one way, i.e., 222010000 + 63776196 = 14900^2 + 7986^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285786191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35723271 + ... + 35723278.

Almost surely, 2^285786196 is an apocalyptic number.

It is an amenable number.

285786196 is a deficient number, since it is larger than the sum of its proper divisors (214339654).

285786196 is a wasteful number, since it uses less digits than its factorization.

285786196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71446553 (or 71446551 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 285786196 is about 16905.2120956822. The cubic root of 285786196 is about 658.6890076718.

The spelling of 285786196 in words is "two hundred eighty-five million, seven hundred eighty-six thousand, one hundred ninety-six".